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Hassan N, Stelzl J, Weinberger P, Molnar G, Bousseksou A, Kubel F, Mereiter K, Boca R, Linert W. Spectroscopic, structural and magnetic investigations of iron(II) complexes based on 1-isopropyl- and 1-isobutyl-substituted tetrazole ligands. Inorganica Chim Acta 2013; 396:92-100. [PMID: 23564970 PMCID: PMC3616971 DOI: 10.1016/j.ica.2012.10.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Revised: 10/12/2012] [Accepted: 10/17/2012] [Indexed: 12/04/2022]
Abstract
Two partly new [Fe(intz)6](BF4)2 complexes with n = 3 and 4 (i3tz = 1-isopropyl-1H-tetrazole, i4tz = 1-isobutyl-1H-tetrazole) were synthesized and characterised by X-ray powder diffraction, magnetic susceptibility measurements, vibrational, electronic and 57Fe-Mößbauer spectroscopy as well as DSC. The [Fe(i3tz)6](BF4)2 complex was re-investigated and shows an incomplete spin transition at Tc ∼ 109 K, while the [Fe(i4tz)6](BF4)2 features a complete but rather gradual spin transition with T½ = 223 K. In the lack of suitable crystals of [Fe(intz)6](BF4)2 with n = 3 and 4, we synthesized crystals of [Ni(intz)6](BF4)2 with n = 3 and 4, determined their X-ray crystal structures, and proved them to be homeotypic with the respective Fe-complexes by X-ray powder diffraction. DSC measurements showed an endothermic peak for the [Fe(i3tz)6](BF4)2 around T = 260 K not corresponding to a spin transition and suggesting a structural phase transition at this temperature. A well-developed peak at Tp = 225 K matches the spin-transition temperature T½ = 223 K for [Fe(i4tz)6](BF4)2.
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Affiliation(s)
- Nader Hassan
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-AC, A-1060 Vienna, Austria
| | - Julia Stelzl
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-AC, A-1060 Vienna, Austria
| | - Peter Weinberger
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-AC, A-1060 Vienna, Austria
| | - Gabor Molnar
- Laboratoire de Chimie de Coordination, LCC-CNRS UPR8241, 205 Route de Narbonne, F-31077 Toulouse, France
| | - Azzedine Bousseksou
- Laboratoire de Chimie de Coordination, LCC-CNRS UPR8241, 205 Route de Narbonne, F-31077 Toulouse, France
| | - Frank Kubel
- Institute for Chemical Technologies and Analytics, Vienna University of Technology, Getreidemarkt 9/164-SC, A-1060 Vienna, Austria
| | - Kurt Mereiter
- Institute for Chemical Technologies and Analytics, Vienna University of Technology, Getreidemarkt 9/164-SC, A-1060 Vienna, Austria
| | - Roman Boca
- Institute of Inorganic Chemistry, Technology and Materials (FCHPT), Slovak University of Technology, SK 812 37 Bratislava, Slovakia
| | - Wolfgang Linert
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-AC, A-1060 Vienna, Austria
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Liu ZY, Zou HA, Hou ZJ, Yang EC, Zhao XJ. Structural motif-dependent magnetic diversity observed in three-dimensional tetrazolyl-based MMOFs: synthesis, structures and magnetism. Dalton Trans 2013; 42:15716-25. [DOI: 10.1039/c3dt52190g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Zhong-Yi Liu
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China.
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3
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Yang Q, Chen S, Xie G, Gao S. Synthesis and characterization of an energetic compound Cu(Mtta)2(NO3)2 and effect on thermal decomposition of ammonium perchlorate. JOURNAL OF HAZARDOUS MATERIALS 2011; 197:199-203. [PMID: 21999985 DOI: 10.1016/j.jhazmat.2011.09.074] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2011] [Revised: 09/17/2011] [Accepted: 09/19/2011] [Indexed: 05/31/2023]
Abstract
An energetic coordination compound Cu(Mtta)(2)(NO(3))(2) has been synthesized by using 1-methyltetrazole (Mtta) as ligand and its structure has been characterized by X-ray single crystal diffraction. The central copper (II) cation was coordinated by four O atoms from two Mtta ligands and two N atoms from two NO(3)(-) anions to form a six-coordinated and distorted octahedral structure. 2D superamolecular layer structure was formed by the extensive intermolecular hydrogen bonds between Mtta ligands and NO(3)(-) anions. Thermal decomposition process of the compound was predicted based on DSC and TG-DTG analyses results. The kinetic parameters of the first exothermic process of the compound were studied by the Kissinger's and Ozawa-Doyle's methods. Sensitivity tests revealed that the compound was insensitive to mechanical stimuli. In addition, compound was explored as additive to promote the thermal decomposition of ammonium perchlorate (AP) by differential scanning calorimetry.
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Affiliation(s)
- Qi Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi, China
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4
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Gupta DK, Singh S, Mayer P, Pandey A. Hydrothermal synthesis, structure and photoluminescent property of a novel sodium-pyrazinyltetrazole framework compound. INORG CHEM COMMUN 2011. [DOI: 10.1016/j.inoche.2011.05.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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5
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Three novel coordination networks dependent upon H2btze ligand [H2btze=1,2-bis(tetrazol-5-yl) ethane]. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.01.057] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Li QY, Yang GW, Tang XY, Ma YS, Zhou F, Liu W, Chen J, Zhou H. Synthesis, crystal structures, and luminescence properties of two new coordination compounds [Zn(pytza)2(H2O)2] and [CdCl(pytza)]n (Hpytza=5-(2-pyridyl)tetrazole-2-acetic acid). INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2009.11.024] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Zhou Y, Yang GW, Li QY, Liu K, Gu GQ, Ma YS, Yuan RX. Group II metal-directed structural variation of coordination compounds derived from 5-[N-acetato(4-pyridyl)]tetrazolate ligand. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.08.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Tovee CA, Kilner CA, Thomas JA, Halcrow MA. Co-crystallising two functional complex molecules in a terpyridine embrace lattice. CrystEngComm 2009. [DOI: 10.1039/b904528g] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Cui Y, Zhang J, Zhang T, Yang L, Zhang J, Hu X. Synthesis, structural investigation, thermal decomposition mechanism and sensitivity properties of an energetic compound [Cd(DAT)(6)](ClO(4))(2) (DAT=1,5-diaminotetrazole). JOURNAL OF HAZARDOUS MATERIALS 2008; 160:45-50. [PMID: 18394793 DOI: 10.1016/j.jhazmat.2008.02.078] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2008] [Revised: 02/22/2008] [Accepted: 02/22/2008] [Indexed: 05/26/2023]
Abstract
An energetic coordination compound [Cd(DAT)(6)](ClO(4))(2) has been synthesized by using 1,5-diaminotetrazole (DAT) as ligand and its structure has been characterized by applying X-ray single crystal diffraction, elemental analysis and FT-IR spectroscopy. The central cadmium(II) cation is coordinated by six N atoms from six DAT molecules to form a six-coordinated and distorted octahedral structure. Di-dimension layer structure was formed and the layers were linked together by the extensive intermolecular hydrogen bonds between DAT ligands and ClO(4)(-) anions. Thermal decomposition mechanism of the title compound was predicted based on DSC, TG-DTG and FT-IR analyses results. The kinetic parameters of the first exothermic process of the title compound were studied by applying the Kissinger's and Ozawa-Doyle's methods. Sensitivity tests reveal that the title compound has sensitive nature.
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Affiliation(s)
- Yan Cui
- State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, PR China
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Cui Y, Zhang TL, Zhang JG, Yang L, Hu XC, Zhang J. Synthesis, structural investigation and thermal analyses of a novel coordination compound [Cd(DAT)6](HTNR)2·3.5H2O (DAT=1,5-diaminotetrazole, H2TNR=styphnic acid). J Mol Struct 2008. [DOI: 10.1016/j.molstruc.2008.01.044] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Li QY, Yang GW, Ma YS, Li MJ, Zhou Y. Synthesis and structural characterization of two novel 2D coordination polymers [PbCl(atza)]n and [PbCl(a4-ptz)]n. INORG CHEM COMMUN 2008. [DOI: 10.1016/j.inoche.2008.04.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Halcrow MA. The spin-states and spin-transitions of mononuclear iron(II) complexes of nitrogen-donor ligands. Polyhedron 2007. [DOI: 10.1016/j.poly.2007.03.033] [Citation(s) in RCA: 270] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Naumov P, Sakurai K, Asaka T, Belik AA, Adachi SI, Takahashi J, Koshihara SY. Structural Basis for the Phase Switching of Bisaminecopper(II) Cations at the Thermal Limits of Lattice Stability. Inorg Chem 2006; 45:5027-33. [PMID: 16780324 DOI: 10.1021/ic060110s] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The structural grounds of the decrease of point and lattice symmetries coupled with switching of the exchange interaction in single crystals of a highly strained, coordinationally unsaturated bisdiaminecopper(II) cation are described. The combined magnetic susceptibility and X-ray diffraction results indicate that the interplay between the inherent vibronic instability and ligand-field strain imposed by moderately flexible, coordinationally shielding ligands enables effective switching of the pseudo-Jahn-Teller d9 centers between states with different exchange interaction in the low-temperature regime and valence orbital orientation and coordination geometry in the high-temperature regime. Within the low-temperature hysteresis region, the phase transition can also be induced by excitation of the ligand-to-metal charge-transfer bands, resulting in overall shrinkage of the lattice. The compound is a prototype of weakly electronically coupled one-dimensional Jahn-Teller systems, which can undergo phase transitions induced by light, in addition to heating, cooling, and change of pressure, and it represents a prospective basis for the design of switching materials capable of multimode external control.
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Affiliation(s)
- Pance Naumov
- International Center for Young Scientists, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
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Bronisz R. Synthesis and Characterisation of Coordination Polymers of Cu
II
and Zn
II
with 1,3‐Bis(1,2,3,4‐tetrazol‐2‐yl)propane − Rotational Freedom of the Donor Group Favours Structural Diversification. Eur J Inorg Chem 2004. [DOI: 10.1002/ejic.200400171] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Robert Bronisz
- Faculty of Chemistry, University of Wroclaw, F. Joliot‐Curie 14, 50‐383 Wroclaw, Poland, Fax: (internat.) + 48‐71‐328‐2348
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Hayami S, Gu Z, Yoshiki H, Fujishima A, Sato O. Iron(III) spin-crossover compounds with a wide apparent thermal hysteresis around room temperature. J Am Chem Soc 2001; 123:11644-50. [PMID: 11716720 DOI: 10.1021/ja0017920] [Citation(s) in RCA: 257] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The magnetic properties of the spin-crossover compounds, [Fe(qsal)2]NCSe-MeOH (1) and [Fe(qsal)2]NCSe-CH2Cl2 (2), have been measured. We have discovered that both compounds 1 and 2 exhibit a wide thermal hysteresis loop of 140 K (T(1/2) upward arrow = 352 K and T(1/2) downward arrow = 212 K) and 180 K (T(1/2) upward arrow = 392 K and T(1/2) downward arrow = 212 K), respectively, in the first cycle. Thermogravimetric analysis shows that solvent molecules escape from compounds 1 and 2 around 340 and 395 K, respectively. This means that the hysteresis loops observed for the first cycle are only apparent ones. Following the first loop, they show a two-step spin-crossover in warming mode. The so-called "step 1" and "step 2" are centered around T(1/2(S1)) upward arrow = 215 K and T(1/2(S2)) upward arrow = 282 K, respectively. On the other hand, a one-step spin-crossover occurs at T(1/2) downward arrow = 212 K in cooling mode. The hysteresis widths can be estimated to be 3 K (step 1) and 70 K (step 2), assuming that the widths in steps 1 and 2 are defined as the differences between T(1/2(S1)) upward arrow and T(1/2) downward arrow, and T(1/2(S2)) upward arrow and T(1/2) downward arrow, respectively. The hysteresis width of 70 K in step 2 is one of the widest values reported so far for spin-crossover complexes. It is thought that the cooperativity operating in the complexes arises mainly from the intermolecular pi interactions between quinoline and phenyl rings. Using a previously reported model, we are able to simulate the hysteresis loop with a two-step spin-crossover in warming mode and a one-step transition in cooling mode.
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Affiliation(s)
- S Hayami
- Special Research Laboratory for Optical Science, Kanagawa Academy of Science and Technology, East 412, 3-2-1 Sakado, Takatsu-ku, Kawasaki-shi, Kanagawa 213-0012, Japan
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16
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Lee JJ, Sheu HS, Lee CR, Chen JM, Lee JF, Wang CC, Huang CH, Wang Y. X-ray Absorption Spectroscopic Studies on Light-Induced Excited Spin State Trapping of an Fe(II) Complex. J Am Chem Soc 2000. [DOI: 10.1021/ja9943290] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jey-Jau Lee
- Contribution from the Department of Chemistry, National Taiwan University, Taipei, Taiwan, R.O.C., and the Synchrotron Radiation Research Center, Hsin Chu, Taiwan, R.O.C
| | - Hwo-shuenn Sheu
- Contribution from the Department of Chemistry, National Taiwan University, Taipei, Taiwan, R.O.C., and the Synchrotron Radiation Research Center, Hsin Chu, Taiwan, R.O.C
| | - Chi-Rung Lee
- Contribution from the Department of Chemistry, National Taiwan University, Taipei, Taiwan, R.O.C., and the Synchrotron Radiation Research Center, Hsin Chu, Taiwan, R.O.C
| | - Jin-Ming Chen
- Contribution from the Department of Chemistry, National Taiwan University, Taipei, Taiwan, R.O.C., and the Synchrotron Radiation Research Center, Hsin Chu, Taiwan, R.O.C
| | - Jyh-Fu Lee
- Contribution from the Department of Chemistry, National Taiwan University, Taipei, Taiwan, R.O.C., and the Synchrotron Radiation Research Center, Hsin Chu, Taiwan, R.O.C
| | - Chih-Chieh Wang
- Contribution from the Department of Chemistry, National Taiwan University, Taipei, Taiwan, R.O.C., and the Synchrotron Radiation Research Center, Hsin Chu, Taiwan, R.O.C
| | - Chun-Hsun Huang
- Contribution from the Department of Chemistry, National Taiwan University, Taipei, Taiwan, R.O.C., and the Synchrotron Radiation Research Center, Hsin Chu, Taiwan, R.O.C
| | - Yu Wang
- Contribution from the Department of Chemistry, National Taiwan University, Taipei, Taiwan, R.O.C., and the Synchrotron Radiation Research Center, Hsin Chu, Taiwan, R.O.C
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