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Onn CS, Hill AF, Ward JS. Spodium bonding in bis(alkynyl)mecurials. Chem Commun (Camb) 2024; 60:2552-2555. [PMID: 38343202 DOI: 10.1039/d3cc06027f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
The new bis(alkynyl)mercurial Hg{CCSeCW(CO)2(Tp*)}2 (Tp* = tris(dimethylpyrazolyl)borate) forms adducts with fluoride and phenathroline, the structures of which are interpreted in the context of two-coordinate mercury presenting a σ-torroid for spodium bonding.
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Affiliation(s)
- Chee S Onn
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory, ACT 2601, Australia.
| | - Anthony F Hill
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory, ACT 2601, Australia.
| | - Jas S Ward
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory, ACT 2601, Australia.
- Department of Chemistry, University of Jyväskylä, FI-40014, Jyväskylä, Finland
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2
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McMonagle CJ, Fuller CA, Hupf E, Malaspina LA, Grabowsky S, Chernyshov D. Lattice response to the radiation damage of molecular crystals: radiation-induced versus thermal expansivity. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2024; 80:13-18. [PMID: 38174727 PMCID: PMC10848411 DOI: 10.1107/s2052520623010636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/12/2023] [Indexed: 01/05/2024]
Abstract
The interaction of intense synchrotron radiation with molecular crystals frequently modifies the crystal structure by breaking bonds, producing fragments and, hence, inducing disorder. Here, a second-rank tensor of radiation-induced lattice strain is proposed to characterize the structural susceptibility to radiation. Quantitative estimates are derived using a linear response approximation from experimental data collected on three materials Hg(NO3)2(PPh3)2, Hg(CN)2(PPh3)2 and BiPh3 [PPh3 = triphenylphosphine, P(C6H5)3; Ph = phenyl, C6H5], and are compared with the corresponding thermal expansivities. The associated eigenvalues and eigenvectors show that the two tensors are not the same and therefore probe truly different structural responses. The tensor of radiative expansion serves as a measure of the susceptibility of crystal structures to radiation damage.
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Affiliation(s)
| | | | - Emanuel Hupf
- University of Bremen, Department 2 – Biology/Chemistry, Leobener Str. 7, 29359 Bremen, Germany
| | - Lorraine A. Malaspina
- University of Bern, Department of Chemistry, Biochemistry and Pharmaceutical Sciences, Freiestrasse 3, 3012 Bern, Switzerland
| | - Simon Grabowsky
- University of Bern, Department of Chemistry, Biochemistry and Pharmaceutical Sciences, Freiestrasse 3, 3012 Bern, Switzerland
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3
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Malaspina LA, Wieduwilt EK, Bergmann J, Kleemiss F, Meyer B, Ruiz-López MF, Pal R, Hupf E, Beckmann J, Piltz RO, Edwards AJ, Grabowsky S, Genoni A. Fast and Accurate Quantum Crystallography: From Small to Large, from Light to Heavy. J Phys Chem Lett 2019; 10:6973-6982. [PMID: 31633355 DOI: 10.1021/acs.jpclett.9b02646] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The coupling of the crystallographic refinement technique Hirshfeld atom refinement (HAR) with the recently constructed libraries of extremely localized molecular orbitals (ELMOs) gives rise to the new quantum-crystallographic method HAR-ELMO. This method is significantly faster than HAR but as accurate and precise, especially concerning the free refinement of hydrogen atoms from X-ray diffraction data, so that the first fully quantum-crystallographic refinement of a protein is presented here. However, the promise of HAR-ELMO exceeds large molecules and protein crystallography. In fact, it also renders possible electron-density investigations of heavy elements in small molecules and facilitates the detection and isolation of systematic errors from physical effects.
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Affiliation(s)
- Lorraine A Malaspina
- Institut für Anorganische Chemie und Kristallographie, Fachbereich 2 - Biologie/Chemie , Universität Bremen , Leobener Straße 3 und 7 , 28359 Bremen , Germany
| | - Erna K Wieduwilt
- Institut für Anorganische Chemie und Kristallographie, Fachbereich 2 - Biologie/Chemie , Universität Bremen , Leobener Straße 3 und 7 , 28359 Bremen , Germany
- Université de Lorraine , CNRS, Laboratoire de Physique et Chimie Théoriques (LPCT) , 1 Boulevard Arago , 57078 Metz , France
| | - Justin Bergmann
- Institut für Anorganische Chemie und Kristallographie, Fachbereich 2 - Biologie/Chemie , Universität Bremen , Leobener Straße 3 und 7 , 28359 Bremen , Germany
| | - Florian Kleemiss
- Institut für Anorganische Chemie und Kristallographie, Fachbereich 2 - Biologie/Chemie , Universität Bremen , Leobener Straße 3 und 7 , 28359 Bremen , Germany
- Departement für Chemie und Biochemie , Universität Bern , Freiestrasse 3 , 3012 Bern , Switzerland
| | - Benjamin Meyer
- Université de Lorraine , CNRS, Laboratoire de Physique et Chimie Théoriques (LPCT) , 1 Boulevard Arago , 57078 Metz , France
| | - Manuel F Ruiz-López
- Université de Lorraine , CNRS, Laboratoire de Physique et Chimie Théoriques (LPCT) , 1 Boulevard Arago , 57078 Metz , France
| | - Rumpa Pal
- Institut für Anorganische Chemie und Kristallographie, Fachbereich 2 - Biologie/Chemie , Universität Bremen , Leobener Straße 3 und 7 , 28359 Bremen , Germany
| | - Emanuel Hupf
- Institut für Anorganische Chemie und Kristallographie, Fachbereich 2 - Biologie/Chemie , Universität Bremen , Leobener Straße 3 und 7 , 28359 Bremen , Germany
| | - Jens Beckmann
- Institut für Anorganische Chemie und Kristallographie, Fachbereich 2 - Biologie/Chemie , Universität Bremen , Leobener Straße 3 und 7 , 28359 Bremen , Germany
| | - Ross O Piltz
- Australian Nuclear Science and Technology Organisation , Australian Centre for Neutron Scattering , New Illawarra Road , Lucas Heights , NSW 2234 , Australia
| | - Alison J Edwards
- Australian Nuclear Science and Technology Organisation , Australian Centre for Neutron Scattering , New Illawarra Road , Lucas Heights , NSW 2234 , Australia
| | - Simon Grabowsky
- Institut für Anorganische Chemie und Kristallographie, Fachbereich 2 - Biologie/Chemie , Universität Bremen , Leobener Straße 3 und 7 , 28359 Bremen , Germany
- Departement für Chemie und Biochemie , Universität Bern , Freiestrasse 3 , 3012 Bern , Switzerland
| | - Alessandro Genoni
- Université de Lorraine , CNRS, Laboratoire de Physique et Chimie Théoriques (LPCT) , 1 Boulevard Arago , 57078 Metz , France
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4
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Padron DA, Klausmeyer KK. Syntheses and coordination studies of 2-(diphenylphosphinomethyl)pyridine and its oxide towards mercury(II). Polyhedron 2012. [DOI: 10.1016/j.poly.2012.01.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Siemeling U, Klemann T, Bruhn C, Schulz J, Štěpnička P. The coordination behaviour of ferrocene-based pyridylphosphine ligands towards Zn(II), Cd(II) and Hg(II). Dalton Trans 2011; 40:4722-40. [PMID: 21431151 DOI: 10.1039/c0dt01810d] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of Group 12 metal dihalides MX(2) with the P,N-ligands [Fe(C(5)H(4)-PPh(2))(C(5)H(4)-2-py)] (1) (2-py = pyrid-2-yl), [Fe(C(5)H(4)-PPh(2))(C(5)H(4)-CH(2)-2-py)] (2) and [Fe(C(5)H(4)-PPh(2))(C(5)H(4)-3-py)] (3) (3-py = pyrid-3-yl) was investigated. For a 1 : 1 molar ratio of MX(2) and the respective ligand, three structure types were found in the solid state, viz. chelate, cyclic dimer and chain-like coordination polymer. The M(II) coordination environment is distorted pseudo-tetrahedral in each case. The P-M-N angle is much larger in the chelates (≥119°) than in the ligand-bridged structures (≤109°). 1 prefers the formation of chelates [MX(2)(1-κ(2)N,P)]. 3 forms coordination polymers [MX(2)(μ-3)](n). With the more flexible 2 all three structure types can occur. Dynamic coordination equilibria were observed in solution for the molecular complexes obtained with 1 and 2. NMR data indicate that the N- and P-donor sites interact most strongly with Zn(II) and Hg(II), respectively. While the formation of bis(phosphine)mercury complexes (soft-soft) was easily achieved, no bis(pyridine)zinc complex (borderline-borderline) could be obtained, which is surprising in view of the HSAB principle.
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Affiliation(s)
- Ulrich Siemeling
- Institute of Chemistry, University of Kassel, Heinrich-Plett-Str. 40, 34132, Kassel, Germany.
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6
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Bryce DL, Courchesne NMD, Perras FA. Measurement of delta(1)J((199)Hg, (31)P) in [HgPCy3(OAc)2]2 and relativistic ZORA DFT investigations of mercury-phosphorus coupling tensors. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2009; 36:182-191. [PMID: 20056396 DOI: 10.1016/j.ssnmr.2009.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2009] [Revised: 10/29/2009] [Accepted: 11/25/2009] [Indexed: 05/28/2023]
Abstract
Using 31P solid-state NMR spectroscopy, anisotropy in the indirect 199Hg-31P spin-spin coupling tensor (DeltaJ) for powdered [HgPCy3(OAc)2]2 (1) has been measured as 4700 +/- 300 Hz. Zeroth-order regular approximation (ZORA) density functional theory (DFT) calculations, including scalar and spin-orbit relativistic effects, performed on 1 and a series of other related compounds show that DeltaJ(199Hg, (31)P) arises entirely from the ZORA Fermi-contact-spin-dipolar cross term. The calculations validate assumptions made in the spectral analysis of 1 and in previous determinations of DeltaJ in powder samples, namely that J is axially symmetric and shares its principal axis system with the direct dipolar coupling tensor (D). Agreement between experiment and theory for various 199Hg, 31P spin-spin coupling anisotropies is reasonable; however, experimental values of 1J(199Hg, 31P)(iso) are significantly underestimated by the calculations. The most important improvements in the agreement were obtained as a result of including more of the crystal lattice in the model used for the calculations, e.g., a change of 43% was noted for 1J(199Hg, 31P)(iso) in [HgPPh3(NO3)2]2 depending on whether the two or three nearest nitrate ions are included in the model. Finally, we have written a computer program to simulate the effects of non-axial symmetry in J and of non-coincidence of the J and D on powder NMR spectra. Simulations clearly show that both of these effects have a pronounced impact on the 31P NMR spectrum of 199Hg-31P spin pairs, suggesting that the effects should be observable experimentally if a suitable compound can be identified.
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Affiliation(s)
- David L Bryce
- Department of Chemistry and Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, Ontario, Canada K1N6N5.
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7
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Nilsson KB, Maliarik M, Persson I, Sandström M. Structure of solvated mercury(II) halides in liquid ammonia, triethyl phosphite and tri-n-butylphosphine solution. Dalton Trans 2008:2303-13. [PMID: 18414756 DOI: 10.1039/b716134d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Liquid ammonia, trialkyl phosphites, and especially trialkylphosphines, are very powerful electron-pair donor solvents with soft bonding character. The solvent molecules act as strongly coordinating ligands towards mercury(ii), interacting strongly enough to displace halide ligands. In liquid ammonia mercury(ii) chloride solutions separate into two liquid phases; the upper contains tetraamminemercury(ii) complexes, [Hg(NH(3))(4)](2+), and chloride ions in low concentration, while the lower is a dense highly concentrated solution of [Hg(NH(3))(4)](2+) entities, ca. 1.4 mol dm(-3), probably ion-paired by hydrogen bonds to the chloride ions. Mercury(ii) bromide also dissociates to ionic complexes in liquid ammonia and forms a homogeneous solution for which (199)Hg NMR indicates weak bromide association with mercury(ii). When dissolving mercury(ii) iodide in liquid ammonia and triethyl phosphite solvated molecular complexes form in the solutions. The Raman nu(I-Hg-I) symmetric stretching frequency is 132 cm(-1) for the pseudo-tetrahedral [HgI(2)(NH(3))(2)] complex formed in liquid ammonia, corresponding to D(S) = 56 on the donor strength scale. For the Hg(ClO(4))(2)/NH(4)I system in liquid ammonia a (199)Hg NMR study showed [HgI(4)](2-) to be the dominating mercury(ii) complex for mole ratios n(I(-)) : n(Hg(2+)) > or = 6. A large angle X-ray scattering (LAXS) study of mercury(ii) iodide in triethyl phosphite solution showed a [HgI(2)(P(OC(4)H(9))(3))(2)] complex with the Hg-I and Hg-P bond distances 2.750(3) and 2.457(4) A, respectively, in near tetrahedral configuration. Trialkylphosphines generally form very strong bonds to mercury(ii), dissociating all mercury(ii) halides. Mercury(ii) chloride and bromide form solid solvated mercury(ii) halide salts when treated with tri-n-butylphosphine, because of the low permittivity of the solvent. A LAXS study of a melt of mercury(ii) iodide in tri-n-butylphosphine at 330 K resulted in the Hg-I and Hg-P distances 2.851(3) and 2.468(4) A, respectively. The absence of a distinct I-I distance indicates flexible coordination geometry with weak and non-directional mercury(ii) iodide association within the tri-n-butylphosphine solvated complex.
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Affiliation(s)
- Kersti B Nilsson
- Department of Chemistry, Swedish University of Agricultural Sciences, P.O.Box 7015, SE-750 07, Uppsala, Sweden
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8
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Fernández P, Sousa-Pedrares A, Romero J, García-Vázquez JA, Sousa A, Pérez-Lourido P. Zinc(II), Cadmium(II), Mercury(II), and Ethylmercury(II) Complexes of Phosphinothiol Ligands. Inorg Chem 2008; 47:2121-32. [DOI: 10.1021/ic7005925] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- P. Fernández
- Departamento de Química Inorgánica, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain, and Departamento de Química Inorgánica, Universidad de Vigo, 36200 Vigo, Spain
| | - A. Sousa-Pedrares
- Departamento de Química Inorgánica, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain, and Departamento de Química Inorgánica, Universidad de Vigo, 36200 Vigo, Spain
| | - J. Romero
- Departamento de Química Inorgánica, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain, and Departamento de Química Inorgánica, Universidad de Vigo, 36200 Vigo, Spain
| | - J. A. García-Vázquez
- Departamento de Química Inorgánica, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain, and Departamento de Química Inorgánica, Universidad de Vigo, 36200 Vigo, Spain
| | - A. Sousa
- Departamento de Química Inorgánica, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain, and Departamento de Química Inorgánica, Universidad de Vigo, 36200 Vigo, Spain
| | - P. Pérez-Lourido
- Departamento de Química Inorgánica, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain, and Departamento de Química Inorgánica, Universidad de Vigo, 36200 Vigo, Spain
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9
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Wu G, Wasylishen RE. Influence of heteronuclear dipolar interactions on magic angle spinning NMR spectra of solids containing isolated three-spin systems. Mol Phys 2006. [DOI: 10.1080/00268979400101411] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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Galassi R, Bachechi F, Burini A. Synthesis and crystal structure determination of the bicyclic [bis(μ-P,N-1-benzyl-2-imidazolyl-diphenylphosphine) (μ-O,O′-diperchlorate)dimercury(II)][diperchlorate]. J Mol Struct 2006. [DOI: 10.1016/j.molstruc.2006.01.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Bowmaker GA, Assadollahzadeh B, Brodie AM, Ainscough EW, Freeman GH, Jameson GB. Structural and spectroscopic studies on mercury(II) tribenzylphosphine complexes. Dalton Trans 2005:1602-12. [PMID: 15852109 DOI: 10.1039/b419253b] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The tribenzylphosphine (PBz3) complexes of mercury(II), [Hg(PBz3)2](BF4)2, [Hg(PBz3)2(NO3)2] and [HgX(NO3)(PBz3)](X = Cl, Br, I and SCN), have been synthesised and their structures determined by single-crystal X-ray crystallography. [Hg(PBz3)2](BF4)2 contains [Hg(PBz3)2]2+ cations with linear P-Hg-P coordination, the first example of a truly two-coordinate [Hg(PR3)2]2+ complex. The mercury coordination in [Hg(PBz3)2(NO3)2] can be described as distorted tetrahedral, with a significant deviation of the P-Hg-P angle from linearity as a result of coordination of the nitrate groups. Nitrate coordination is also observed in [HgX(NO3)(PBz3)](X = Cl, Br, I), resulting in significantly non-linear P-Hg-X coordination. The thiocyanate complex is a centrosymmetric thiocyanate-bridged dimer with distorted trigonal-pyramidal mercury coordination to the P atom of PBz3, to the S and N atoms of two bridging thiocyanate groups, and to the O atom of one nitrate group. For all the nitrato complexes, secondary mercury-nitrate interactions (Hg-O 2.7-3.1 A) effectively raise the coordination number of the Hg(II) centres to six. High-resolution 31P solid-state NMR spectra of the six tribenzylphosphine mercury(II)-complexes, obtained by combining magic-angle spinning, proton dipolar decoupling and proton-phosphorus cross-polarization (CP-MAS), have been recorded. The spectra of [Hg(PBz3)2](BF4)2 and [HgX(NO3)(PBz3)](X = Cl, Br, I and SCN) exhibit a single line, due to species that contain non-magnetic isotopes of mercury, and satellite lines, due to 1J(31P-199Hg) coupling. The asymmetric unit of [Hg(PBz3)2(NO3)2] contains two molecules with four phosphorus environments, resulting in two AB spectra with 2J(31P-31P) coupling, due to species that contain non-magnetic isotopes of mercury, and satellite lines consisting of two ABX spectra, due to 1J(31P-199Hg) coupling. These spectra have been analysed to yield all of the chemical shifts and coupling constants involved. A remarkable increase in 1J(31P-199Hg) is observed from [Hg(PBz3)2](BF4)2 to [Hg(PBz3)2(NO3)2] as a consequence of the incorporation of the nitrate group into the Hg coordination sphere in the latter case. Several of the spectra also exhibit broader satellites due to the presence of scalar spin-spin coupling between 31P and the quadrupolar 201Hg nucleus. Slow-spinning methods have been used to analyze the spinning-sideband intensities of the NMR spectra, in order to obtain the 31P shielding anisotropy and asymmetry parameters Deltasigma and eta. The 199Hg and 31P NMR shielding tensors of PMe3 models of the above six compounds have been calculated using relativistic density functional theory. The 31P results are in good agreement with experiment and assist in the assignment of some of the signals.
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Affiliation(s)
- Graham A Bowmaker
- Department of Chemistry, University of Auckland, Private Bag 92 019, Auckland, New Zealand.
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12
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Komarov VY, Ukraintseva EA, Soldatov DV, Enright GD, Galkin PS, Luboradzki R, Lipkowski J. Crystal Structure and Thermodynamic Stability of the [Hg(Pyridine)4(NO3)2] � 2(Pyridine) Inclusion Compound. J INCL PHENOM MACRO 2004. [DOI: 10.1007/s10847-004-0913-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Haid R, Gutmann R, Czermak G, Langes C, Oberhauser W, Kopacka H, Ongania KH, Brüggeller P. First true square-planar Hg(II) compound: synthesis and full characterization of trans-[Hg{Ph2PNP(O)Ph2-P,O}2]. INORG CHEM COMMUN 2003. [DOI: 10.1016/s1387-7003(02)00684-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Synthesis, characterisation and study of mercury(II) bromide complexes with triphenylphosphine and heterocyclic thiones. The crystal structures of [bis(triphenylphosphine) dibromo mercury(II)] and [dibromo (pyrimidine-2-thionato) (triphenylphosphine) mercury(II)]. Extended intra-molecular linkages via NH⋯Br and CH⋯Br interactions. Polyhedron 2001. [DOI: 10.1016/s0277-5387(01)00827-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Hoge B, Thösen C, Pantenburg I. Synthesis and properties of mercury bis(trifluoromethyl)phosphanides and their phosphane complexes. Inorg Chem 2001; 40:3084-8. [PMID: 11399176 DOI: 10.1021/ic001335k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The thermally unstable compounds Hg(CN)P(CF(3))(2) and Hg[P(CF(3))(2)](2) were obtained by reactions of mercury cyanide and bis(trifluoromethyl)phosphane in solution and characterized by multinuclear NMR spectroscopy. An increase in thermal stability is observed when the products form 18 valence electron complexes. The compounds [Hg(P(CF(3))(2))(2)(dppe)] (dppe = 1,2-bis(diphenylphosphanyl)ethane) and [Hg(P(CF(3))(2))(2)(Me(3)P)(2)] have been isolated in almost quantitative yield by reacting [Hg(CN)(2)(dppe)] or [Hg(CN)(2)(Me(3)P)(2)] with HP(CF(3))(2). [Hg(P(CF(3))(2))(2)(dppe)] crystallizes in the triclinic space group P1. The mercury atom is coordinated in a distorted tetrahedral fashion. The Hg-P(CF(3))(2) bonds, ca. 250 pm, are significantly longer than those of the mercury bis(phosphanides) Hg(PR(2))(2) with R = t-Bu, 245 pm, or SiMe(3), 241 pm. These easily accessible compounds [Hg(P(CF(3))(2))(2)(dppe)] and [Hg(P(CF(3))(2))(2)(Me(3)P)(2)] act as nucleophilic bis(trifluoromethyl)phosphane group transfer reagents.
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Affiliation(s)
- B Hoge
- Institut für Anorganische Chemie, Universität zu Köln, Greinstrasse 6, D-50939 Köln, Germany
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16
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Oberhauser W, Stampfl T, Haid R, Langes C, Bachmann C, Kopacka H, Ongania KH, Brüggeller P. Solution and solid state behaviour of binuclear mercury(II) compounds containing cis,trans,cis-1,2,3,4-tetrakis(diphenylphosphino)cyclobutane: first X-ray structural characterisation of mercury(II) complexes with two different chelating phosphines. Polyhedron 2001. [DOI: 10.1016/s0277-5387(01)00708-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Hadjikakou S, Kubicki M. Synthesis, characterisation and study of mercury(II) chloride complexes with triphenylphosphine and heterocyclic thiones. The crystal structures of [(benzothiazole-2-thionato)(benzothiazole-2-thione)(bis-triphenylphosphine) chloro mercury(II)] and [(μ2-dichloro){(bis-pyrimidine-2-thionato)mercury(II)}{(bis-triphenylphosphine)mercury(II)}] at 100 K. Polyhedron 2000. [DOI: 10.1016/s0277-5387(00)00533-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Oberhauser W, Haid R, Bachmann C, Stampfl T, Langes C, Kopacka H, Ongania KH, Brüggeller P. First complex of the monoprotonated trioxodinitrate anion: synthesis and characterization of [Hg2(HN2O3)2(NO3)2(Ph2PNHPPh2)2]. INORG CHEM COMMUN 1999. [DOI: 10.1016/s1387-7003(99)00063-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Álvarez-Larena A, Clegg W, Cucurull-Sánchez L, Gonzàlez-Duarte P, March R, Piniella JF, Pons J, Solans X. Mercury(II) halide adducts of esters of 2-pyridinecarboxylic acid. Crystal structures and structural variations within the series [HgCl2(C5H4NCOOR)], RMe, Et, Prn, Pri. Inorganica Chim Acta 1997. [DOI: 10.1016/s0020-1693(97)05537-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Alyea EC, Ferguson G, Shakya RP, Meehan PR. Multinuclear NMR Spectroscopic and X-ray Crystallographic Studies of a Series of Mercury(II) Complexes Containing the Bidentate Phosphine Ligand Ph(2)PCH(2)Si(CH(3))(2)CH(2)PPh(2) (L(2)). Inorg Chem 1997; 36:4749-4752. [PMID: 11670152 DOI: 10.1021/ic9704243] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The bidentate phosphine ligand Ph(2)PCH(2)Si(CH(3))(2)CH(2)PPh(2) (L(2)), an analogue of 1,3-bis(diphenylphosphino)propane (dppp), coordinates to mercury(II) salts to form complexes of the general formula [HgX(2).L(2)] (X = Cl, Br, I, NCS). Infrared, Raman, and multinuclear ((1)H, (13)C, (31)P, (199)Hg) NMR spectroscopic studies show that the complexes exhibit four-coordinate pseudotetrahedral metal geometry. [HgI(2)(Ph(2)PCH(2)Si(CH(3))(2)CH(2)PPh(2))] (1) crystallizes in the monoclinic space group P2(1)/n with a = 13.028(2) Å, b = 17.402(5) Å, c = 13.849(2) Å, beta = 90.635(14) degrees, V = 3139.5(11) Å(3), and Z = 4. The structure contains a tetrahedral mercury center with the phosphine ligand bound in a bidentate fashion: Hg-P 2.511(2), 2.515(2) Å; P-Hg-P 105.28(6) degrees. The complex [HgCl(2)](2).L(2) has also been generated via a 2:1 metal:phosphine stoichiometry.
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Affiliation(s)
- Elmer C. Alyea
- Department of Chemistry and Biochemistry, University of Guelph, Guelph, Ontario, Canada N1G 2W1
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Dusold S, Klaus E, Sebald A, Bak M, Nielsen NC. Magnitudes and Relative Orientations of Chemical Shielding, Dipolar and J Coupling Tensors for Isolated 31P−31P Spin Pairs Determined by Iterative Fitting of 31P MAS NMR Spectra. J Am Chem Soc 1997. [DOI: 10.1021/ja970890r] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stephan Dusold
- Contribution from the Bayerisches Geoinstitut, Universität Bayreuth, D-95440 Bayreuth, Germany, and Department of Chemistry, University of Aarhus, DK-8000 Aarhus C, Denmark
| | - Elke Klaus
- Contribution from the Bayerisches Geoinstitut, Universität Bayreuth, D-95440 Bayreuth, Germany, and Department of Chemistry, University of Aarhus, DK-8000 Aarhus C, Denmark
| | - Angelika Sebald
- Contribution from the Bayerisches Geoinstitut, Universität Bayreuth, D-95440 Bayreuth, Germany, and Department of Chemistry, University of Aarhus, DK-8000 Aarhus C, Denmark
| | - Mads Bak
- Contribution from the Bayerisches Geoinstitut, Universität Bayreuth, D-95440 Bayreuth, Germany, and Department of Chemistry, University of Aarhus, DK-8000 Aarhus C, Denmark
| | - Niels Chr. Nielsen
- Contribution from the Bayerisches Geoinstitut, Universität Bayreuth, D-95440 Bayreuth, Germany, and Department of Chemistry, University of Aarhus, DK-8000 Aarhus C, Denmark
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