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N-(Chlorodimethylsilyl)methyl anilides: synthesis and structure. MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.11.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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2
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Lazareva NF, Sterkhova IV. Pivalic Acid N-[Chloro(dimethyl)silylmethyl]-N-methylamide: Synthesis and Structure. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222080126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Putro W, Lee VY, Sato K, Choi JC, Fukaya N. From SiO 2 to Alkoxysilanes for the Synthesis of Useful Chemicals. ACS OMEGA 2021; 6:35186-35195. [PMID: 34984251 PMCID: PMC8717390 DOI: 10.1021/acsomega.1c05138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 11/22/2021] [Indexed: 06/14/2023]
Abstract
The transformation of silica (SiO2) to useful chemicals is difficult to explore because of the strength of the Si-O bond and thermodynamic stability of the SiO2 structure. The direct formation of alkoxysilanes from SiO2 has been explored as an alternative to the carbothermal reduction (1900 °C) of SiO2 to metallic silicon (Simet) followed by treatment with alcohols. The base-catalyzed depolymerization of SiO2 with diols and monoalcohols afforded cyclic silicon alkoxides and tetraalkoxysilanes, respectively. SiO2 can also be converted to alkoxysilanes in the presence of organic carbonates, such as dimethyl carbonate. Alkoxysilanes can be further converted to useful chemicals, such as carbamates, organic carbonates, and chlorosilanes. An interesting and highly efficient pathway to the direct conversion of SiO2 to alkoxysilanes has been discussed in detail along with the corresponding economic and environmental implications. The thermodynamic and kinetic aspects of SiO2 transformations in the presence of alcohols are also discussed.
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Affiliation(s)
- Wahyu
S. Putro
- National
Institute of Advanced Industrial Science and Technology (AIST), Interdisciplinary
Research Center for Catalytic Chemistry, Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Vladimir Ya. Lee
- Department
of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Kazuhiko Sato
- National
Institute of Advanced Industrial Science and Technology (AIST), Interdisciplinary
Research Center for Catalytic Chemistry, Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Jun-Chul Choi
- National
Institute of Advanced Industrial Science and Technology (AIST), Interdisciplinary
Research Center for Catalytic Chemistry, Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Norihisa Fukaya
- National
Institute of Advanced Industrial Science and Technology (AIST), Interdisciplinary
Research Center for Catalytic Chemistry, Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
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4
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Raman G, Das J, Mantri K, Krishna Reddy J, Jasra RV. Layered silicate formation during chiral acid templated ZSM-5 synthesis. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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Vis BM, Wen J, Mellerup SK, Merchant RD, Mawhinney RC, Kinrade SD. Silicon Forms a Rich Diversity of Aliphatic Polyol Complexes in Aqueous Solution. J Am Chem Soc 2020; 142:9188-9202. [PMID: 32314583 DOI: 10.1021/jacs.9b10701] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A detailed examination of aqueous Si complexation by alditols and aldonic acids was conducted using high-sensitivity 29Si NMR spectroscopy of isotopically enriched solutions combined with theoretical modeling. Contrary to previous thinking, we have established that aliphatic polyols do not require a threo pair of hydroxy groups to form hypercoordinated Si complexes, although formation constants may be orders of magnitude higher if they are present. Thirteen distinctly different molecular assemblages containing 4-, 5-, or 6-coordinate Si centers have been identified, with significant concentrations of 5-coordinate Si bis-ligand complex being detected even under biologically relevant solution conditions.
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Affiliation(s)
- Bradley M Vis
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1, Canada
| | - Jiali Wen
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1, Canada
| | - Soren K Mellerup
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1, Canada
| | - Roger D Merchant
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1, Canada
| | - Robert C Mawhinney
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1, Canada
| | - Stephen D Kinrade
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1, Canada
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6
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Ding Q, Liu X, Zhao S, Wang Y, Li Y, Li L, Liu S, Lin Z, Hong M, Luo J. Designing a Deep-UV Nonlinear Optical Fluorooxosilicophosphate. J Am Chem Soc 2020; 142:6472-6476. [PMID: 32202111 DOI: 10.1021/jacs.0c00060] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qingran Ding
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiaomeng Liu
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Sangen Zhao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yusong Wang
- University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yanqiang Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. China
| | - Lina Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. China
| | - Shuai Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. China
| | - Zheshuai Lin
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Maochun Hong
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. China
| | - Junhua Luo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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7
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Ding Q, Zhao S, Xiao H, Li Y, Liu S, Li L, Li C, Wang Y, Hong M, Luo J. An Uncommon Hypervalent Fluorooxosilicophosphate. Chem Asian J 2019; 14:4174-4178. [PMID: 31622536 DOI: 10.1002/asia.201901410] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Qingran Ding
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
- University of Chinese Academy of Science Beijing 100049 China
| | - Sangen Zhao
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Han Xiao
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Yanqiang Li
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Shuai Liu
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Lina Li
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Chunsen Li
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Yusong Wang
- University of Science and Technology of China Anhui 230026 China
| | - Maochun Hong
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Junhua Luo
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
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8
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Roeser J, Prill D, Bojdys MJ, Fayon P, Trewin A, Fitch AN, Schmidt MU, Thomas A. Anionic silicate organic frameworks constructed from hexacoordinate silicon centres. Nat Chem 2017; 9:977-982. [DOI: 10.1038/nchem.2771] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 03/21/2017] [Indexed: 12/25/2022]
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9
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Wang W, Wei HZ, Jiang SY, Eastoe CJ, Guo Q, Lin YB. Adsorption Behavior of Metasilicate on N-Methyl d-Glucamine Functional Groups and Associated Silicon Isotope Fractionation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:8872-8881. [PMID: 27499230 DOI: 10.1021/acs.langmuir.6b02388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Significant isotope fractionation of silicon provides a powerful geochemical tracer for biological and physicochemical processes in terrestrial and marine environments. The exact mechanism involved in silicon uptake as part of the biological process is not well known. The silicon uptake in biological processes is investigated using silicate adsorption onto the N-methylglucamine functional group (sugarlike structure, abbreviated as L) of Amberlite IRA-743 resin as an analogue of the formation of silicate-sugar complexes in plants. This study provides new evidence that certain sugars can react readily with basic silicic acid to form sugar-silicate chelating complexes, and the equilibrium adsorption behavior of silicate can be well described by the Langmuir isotherm with a Gibbs free energy (ΔG) of -11.94 ± 0.21 kJ·mol(-1) at 293 K. The adsorption kinetics corresponds well to a first-order kinetic model in which the adsorption rate constant ka of 1.25 × 10(-4) s(-1) and the desorption rate constant kd of 4.00 × 10(-6) s(-1) are obtained at 293 K. Both ka and kd increase with increasing temperature. The bonding configurations of silicate-sugar complexes imply the principal coordination complex of hexacoordinated silicon (silicon/L = 1:3) in the liquid phase and the dominant tetracoordinated silicon in the solid phase. Similar to those of many natural processes, the biological uptake via the sugar-silicate chelating complexes favors the preferential enrichment of light Si isotopes into solids, and the Rayleigh model controls the dynamic isotope fractionation with an estimated silicon isotope fractionation factor (i.e., αsolid-solution = [Formula: see text]) of 0.9971. This study advanced the fundamental understanding of the dynamic isotope fractionation of silicon during silicon cycling from the lithosphere to the biosphere and hydrosphere in surficial processes.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Geological Processes and Mineral Resources, Faculty of Earth Resources, China University of Geosciences , Wuhan 430074, PR China
| | - Hai-Zhen Wei
- State Key Laboratory for Mineral Deposits Research, Department of Earth Sciences, Nanjing University , Nanjing 210023, PR China
| | - Shao-Yong Jiang
- State Key Laboratory of Geological Processes and Mineral Resources, Faculty of Earth Resources, China University of Geosciences , Wuhan 430074, PR China
- State Key Laboratory for Mineral Deposits Research, Department of Earth Sciences, Nanjing University , Nanjing 210023, PR China
| | - Christopher J Eastoe
- Department of Geosciences, University of Arizona , Tucson, Arizona 85721, United States
| | - Qi Guo
- State Key Laboratory of Geological Processes and Mineral Resources, Faculty of Earth Resources, China University of Geosciences , Wuhan 430074, PR China
| | - Yi-Bo Lin
- State Key Laboratory of Geological Processes and Mineral Resources, Faculty of Earth Resources, China University of Geosciences , Wuhan 430074, PR China
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10
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Fukaya N, Choi SJ, Horikoshi T, Kumai H, Hasegawa M, Yasuda H, Sato K, Choi JC. Synthesis of Tetramethoxysilane from Silica and Methanol Using Carbon Dioxide and an Organic Dehydrating Reagent. CHEM LETT 2016. [DOI: 10.1246/cl.160329] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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11
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Laine RM, Furgal JC, Doan P, Pan D, Popova V, Zhang X. Avoiding Carbothermal Reduction: Distillation of Alkoxysilanes from Biogenic, Green, and Sustainable Sources. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201506838] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Richard M. Laine
- Department of Materials Science and Engineering University of Michigan Ann Arbor MI 48109-2136 USA
- Department of Macromolecular Science and Engineering University of Michigan USA
| | | | - Phi Doan
- Department of Chemistry University of Michigan USA
| | - David Pan
- Department of Macromolecular Science and Engineering University of Michigan USA
| | | | - Xingwen Zhang
- Department of Chemistry Harbin Institute of Technology Harbin 150001 China
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12
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Laine RM, Furgal JC, Doan P, Pan D, Popova V, Zhang X. Avoiding Carbothermal Reduction: Distillation of Alkoxysilanes from Biogenic, Green, and Sustainable Sources. Angew Chem Int Ed Engl 2015; 55:1065-9. [DOI: 10.1002/anie.201506838] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 10/19/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Richard M. Laine
- Department of Materials Science and Engineering University of Michigan Ann Arbor MI 48109-2136 USA
- Department of Macromolecular Science and Engineering University of Michigan USA
| | | | - Phi Doan
- Department of Chemistry University of Michigan USA
| | - David Pan
- Department of Macromolecular Science and Engineering University of Michigan USA
| | | | - Xingwen Zhang
- Department of Chemistry Harbin Institute of Technology Harbin 150001 China
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13
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Li X, Michaelis VK, Ong TC, Smith SJ, Griffin RG, Wang EN. Designed single-step synthesis, structure, and derivative textural properties of well-ordered layered penta-coordinate silicon alcoholate complexes. Chemistry 2014; 20:6315-23. [PMID: 24737615 DOI: 10.1002/chem.201400379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Indexed: 11/07/2022]
Abstract
The controllable synthesis of well-ordered layered materials with specific nanoarchitecture poses a grand challenge in materials chemistry. Here the solvothermal synthesis of two structurally analogous 5-coordinate organosilicate complexes through a novel transesterification mechanism is reported. Since the polycrystalline nature of the intrinsic hypervalent Si complex thwarts the endeavor in determining its structure, a novel strategy concerning the elegant addition of a small fraction of B species as an effective crystal growth mediator and a sacrificial agent is proposed to directly prepare diffraction-quality single crystals without disrupting the intrinsic elemental type. In the determined crystal structure, two monomeric primary building units (PBUs) self-assemble into a dimeric asymmetric secondary BU via strong Na(+)-O(2-) ionic bonds. The designed one-pot synthesis is straightforward, robust, and efficient, leading to a well-ordered (10ī)-parallel layered Si complex with its principal interlayers intercalated with extensive van der Waals gaps in spite of the presence of substantial Na(+) counter-ions as a result of unique atomic arrangement in its structure. However, upon fast pyrolysis, followed by acid leaching, both complexes are converted into two SiO2 composites bearing BET surface areas of 163.3 and 254.7 m(2) g(-1) for the pyrolyzed intrinsic and B-assisted Si complexes, respectively. The transesterification methodology merely involving alcoholysis but without any hydrolysis side reaction is designed to have generalized applicability for use in synthesizing new layered metal-organic compounds with tailored PBUs and corresponding metal oxide particles with hierarchical porosity.
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Affiliation(s)
- Xiansen Li
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139 (USA).
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14
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Li X, Michaelis VK, Ong TC, Smith SJ, McKay I, Müller P, Griffin RG, Wang EN. One-pot Solvothermal Synthesis of Well-ordered Layered Sodium Aluminoalcoholate Complex: A Useful Precursor for the Preparation of Porous Al 2O 3 Particles. CrystEngComm 2014; 16:2950-2958. [PMID: 24817826 DOI: 10.1039/c3ce42616e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One-pot solvothermal synthesis of a robust tetranuclear sodium hexakis(glycolato)tris(methanolato)aluminate complex Na3[Al4(OCH3)3(OCH2CH2O)6] via a modified yet rigorous base-catalyzed transesterification mechanism is presented here. Single crystal X-ray diffraction (SCXRD) studies indicate that this unique Al complex contains three penta-coordinate Al3+ ions, each bound to two bidentate ethylene glycolate chelators and one monodentate methanolate ligand. The remaining fourth Al3+ ion is octahedrally coordinated to one oxygen atom from each of the six surrounding glycolate chelators, effectively stitching the three penta-coordinate Al moieties together into a novel tetranuclear Al complex. This aluminate complex is periodically self-assembled into well-ordered layers normal to the [110] axis with the intra-/inter-layer bindings involving extensive ionic bonds from the three charge-counterbalancing Na+ cations rather than the more typical hydrogen bonding interactions as a result of the fewer free hydroxyl groups present in its structure. It can also serve as a valuable precursor toward the facile synthesis of high-surface-area alumina powders using a very efficient rapid pyrolysis technique.
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Affiliation(s)
- Xiansen Li
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Vladimir K Michaelis
- Department of Chemistry, Massachusetts Institute of Technology ; Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology
| | - Ta-Chung Ong
- Department of Chemistry, Massachusetts Institute of Technology ; Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology
| | - Stacey J Smith
- Department of Chemistry, Massachusetts Institute of Technology
| | - Ian McKay
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Peter Müller
- Department of Chemistry, Massachusetts Institute of Technology
| | - Robert G Griffin
- Department of Chemistry, Massachusetts Institute of Technology ; Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology
| | - Evelyn N Wang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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Rao VS, Babu SM, Ranganathan S. Biocompatible Small Molecules that Enhance Silica Solubilization Under Ambient Conditions: Chemical Profile of Such Complexes, Possible Mechanism for Enhancement, and Their Effect on the Growth and Protection from Pests in the Rice Plant (Oryza sativa L.). PHOSPHORUS SULFUR 2009. [DOI: 10.1080/10426500802417208] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Voleti Sitapathi Rao
- a Department of Plant Physiology , Directorate of Rice Research , Hyderabad, India
| | - Setty Mallikarjuna Babu
- b Discovery Laboratory, Organic III , Indian Institute of Chemical Technology , Hyderabad, India
| | - Subramania Ranganathan
- b Discovery Laboratory, Organic III , Indian Institute of Chemical Technology , Hyderabad, India
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16
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Ansell RJ, Meegan JE, Barrett SA, Warrinner SL. On the interactions of alkyl 2-hydroxycarboxylic acids with alkoxysilanes 2. Complexation and esterification of di- and tricarboxylic acids. Dalton Trans 2009:1460-70. [DOI: 10.1039/b814488e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Ranganathan S, Rao CC, Vudayagiri SD, Rajesh YBRD, Jagadeesh B. Solubilization of silica: Synthesis, characterization and study of penta-coordinated pyridine N-oxide silicon complexes. J CHEM SCI 2004. [DOI: 10.1007/bf02708221] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Singh A, Mehrotra R. Novel heterometallic alkoxide coordination systems of polyols (glycols, di- and tri-ethanolamines) derived from the corresponding homometallic moieties. Coord Chem Rev 2004. [DOI: 10.1016/j.cct.2003.09.004] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Cundy CS, Cox PA. The hydrothermal synthesis of zeolites: history and development from the earliest days to the present time. Chem Rev 2003; 103:663-702. [PMID: 12630849 DOI: 10.1021/cr020060i] [Citation(s) in RCA: 963] [Impact Index Per Article: 45.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Colin S Cundy
- Centre for Microporous Materials, Department of Chemistry, UMIST, P.O. Box 88, Manchester M60 1QD, United Kingdom
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20
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Sahai N, Tossell JA. (29)Si NMR shifts and relative stabilities calculated for hypercoordinated silicon-polyalcohol complexes: role in sol-gel and biogenic silica synthesis. Inorg Chem 2002; 41:748-56. [PMID: 11849074 DOI: 10.1021/ic010246k] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Penta- and hexa-coordinated silicon is rare, occurring as a transient species in some glasses, nonaqueous organosilicon solutions and organosilicon gels such as silicone, and is stable at high pressures within the earth in dense phases such as stishovite. The stable form expected in aqueous solution is quadra-coordinated silicon. A recent study proposed the existence of hypercoordinated silicon-polyalcohol complexes in aqueous solution, based on (29)Si NMR shifts at -102 to -103 ppm and -145 to -147 ppm. Here, we report ab initio molecular orbital calculations of (29)Si NMR chemical shifts and relative stabilities of silicon-polyalcohol monocyclic and spirocyclic complexes, from ethylene glycol (C(2)H(6)O(2)) to arabitol (C(5)H(12)O(5)) with Si in quadra-, penta- and hexa-coordination ((Q)Si, (P)Si, (H)Si), calculated at the HF/6-311+G(2d,p)//HF/6-31G* level. Calculated shifts are accurate with a 1-8% error for (Q)Si and 2-9% for (P)Si. Shifts calculated for the hypercoordinated silicon complexes having structures proposed in the literature are much more negative (-128 and -180 ppm for (P)Si and (H)Si) than observed. We propose that cyclic trimers complexed by polyalcohols can explain the -102 ppm shift, where the Si atoms are all (Q)Si, or where two silicons are (Q)Si and one is (P)Si with rapid exchange between the Si sites. The -145 ppm resonance results from structures similar to those proposed in the experimental NMR study for the -102 ppm peak. Our relative stability calculations indicate that structures proposed in the literature for hypercoordinated silicon complexes are thermodynamically unstable in aqueous solution at acidic to neutral conditions but may exist in degrading silicone-gel breast-implants. Thus, aqueous hypercoordinated silicon-polyalcohol complexes are unlikely to play an important role in biological silicon uptake and hold little promise for novel silica synthesis routes from aqueous solutions under nonextreme conditions.
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Affiliation(s)
- Nita Sahai
- Department of Geology and Geophysics, University of Wisconsin, 1215 West Dayton Street, Madison, Wisconsin 53706, USA.
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21
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Kingston JV, Vargheese B, Rao MNS. Synthesis and Characterization of Tris(catecholato) Silicates, [(C6H4O2)3Si]2-with Different Counter Cations – First Pyrolysis Study and X-ray Structure of [{(CH3)2CH}2NH2]2[(C6H4O2)3Si] · 2CH3CN · H2O. MAIN GROUP CHEMISTRY 2000. [DOI: 10.1080/13583140012331339039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Cheng H, Tamaki R, Laine RM, Babonneau F, Chujo Y, Treadwell DR. Neutral Alkoxysilanes from Silica. J Am Chem Soc 2000. [DOI: 10.1021/ja001885h] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hengqin Cheng
- Contribution from the Departments of Chemistry and Materials Science and Engineering, Macromolecular Science and Engineering Center, The University of Michigan, Ann Arbor, Michigan 48109-2136, Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan, and Laboratoire Chimie de la Matiere Condensée, Université de Pierre et Marie Curie, Tour 54 E5, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Ryo Tamaki
- Contribution from the Departments of Chemistry and Materials Science and Engineering, Macromolecular Science and Engineering Center, The University of Michigan, Ann Arbor, Michigan 48109-2136, Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan, and Laboratoire Chimie de la Matiere Condensée, Université de Pierre et Marie Curie, Tour 54 E5, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Richard M. Laine
- Contribution from the Departments of Chemistry and Materials Science and Engineering, Macromolecular Science and Engineering Center, The University of Michigan, Ann Arbor, Michigan 48109-2136, Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan, and Laboratoire Chimie de la Matiere Condensée, Université de Pierre et Marie Curie, Tour 54 E5, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Florence Babonneau
- Contribution from the Departments of Chemistry and Materials Science and Engineering, Macromolecular Science and Engineering Center, The University of Michigan, Ann Arbor, Michigan 48109-2136, Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan, and Laboratoire Chimie de la Matiere Condensée, Université de Pierre et Marie Curie, Tour 54 E5, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Yoshiki Chujo
- Contribution from the Departments of Chemistry and Materials Science and Engineering, Macromolecular Science and Engineering Center, The University of Michigan, Ann Arbor, Michigan 48109-2136, Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan, and Laboratoire Chimie de la Matiere Condensée, Université de Pierre et Marie Curie, Tour 54 E5, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - David R. Treadwell
- Contribution from the Departments of Chemistry and Materials Science and Engineering, Macromolecular Science and Engineering Center, The University of Michigan, Ann Arbor, Michigan 48109-2136, Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan, and Laboratoire Chimie de la Matiere Condensée, Université de Pierre et Marie Curie, Tour 54 E5, 4 Place Jussieu, 75252 Paris Cedex 05, France
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Kinrade SD, Del Nin JW, Schach AS, Sloan TA, Wilson KL, Knight CT. Stable five- and six-coordinated silicate anions in aqueous solution. Science 1999; 285:1542-5. [PMID: 10477513 DOI: 10.1126/science.285.5433.1542] [Citation(s) in RCA: 164] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Addition of aliphatic polyols to aqueous silicate solutions is shown to yield high concentrations of stable polyolate complexes containing five- or six-coordinated silicon. Coordinating polyols require at least four hydroxy groups, two of which must be in threo configuration, and coordinate to silicon via hydroxy oxygens at chain positions on either side of the threo pair. The remarkable ease by which these simple sugar-like molecules react to form hypervalent silicon complexes in aqueous solution supports a long-standing supposition that such species play a significant role in the biological uptake and transport of silicon and in mineral diagenesis.
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Affiliation(s)
- S D Kinrade
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, Canada P7B 5E1.
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Kingston J, Sudheendra Rao M. High yield synthesis of cyclic phosphites, phosphates, sulphites and sulphates of catechol and glycol mediated by hypervalent silicon centres. Tetrahedron Lett 1997. [DOI: 10.1016/s0040-4039(97)01020-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kress JD, Leung PC, Tawa GJ, Hay PJ. Calculation of a Reaction Path for KOH Catalyzed Ring-Opening Polymerization of Hexamethylcyclotrisiloxane. J Am Chem Soc 1997. [DOI: 10.1021/ja961190+] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Synthesis and characterization of two new silica socialites containing ethanolamine or ethylenediamine as guest species: [C2H7NO]2[Si6O12]2 and [C2H8N2]2[Si6O12]2. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/0144-2449(95)00123-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Dougherty J, Iton LE, White JW. Room temperature aging of a ZSM-5 preparation detected by small angle X-ray and neutron scattering and n.m.r. spectroscopy. ACTA ACUST UNITED AC 1995. [DOI: 10.1016/0144-2449(95)00045-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Knight CT, Syvitski RT, Kinrade SD. Aqueous silicate chemistry in zeolite synthesis. ACTA ACUST UNITED AC 1995. [DOI: 10.1016/s0167-2991(06)81927-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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