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Elinburg JK, Hyre AS, McNeely J, Alam TM, Klenner S, Pöttgen R, Rheingold AL, Doerrer LH. Formation of monomeric Sn(ii) and Sn(iv) perfluoropinacolate complexes and their characterization by 119Sn Mössbauer and 119Sn NMR spectroscopies. Dalton Trans 2020; 49:13773-13785. [PMID: 33000834 DOI: 10.1039/d0dt02837a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and characterization of a series of Sn(ii) and Sn(iv) complexes supported by the highly electron-withdrawing dianionic perfluoropinacolate (pinF) ligand are reported herein. Three analogs of [SnIV(pinF)3]2- with NEt3H+ (1), K+ (2), and {K(18C6)}+ (3) counter cations and two analogs of [SnII(pinF)2]2- with K+ (4) and {K(15C5)2}+ (5) counter cations were prepared and characterized by standard analytical methods, single-crystal X-ray diffraction, and 119Sn Mössbauer and NMR spectroscopies. The six-coordinate SnIV(pinF) complexes display 119Sn NMR resonances and 119Sn Mössbauer spectra similar to SnO2 (cassiterite). In contrast, the four-coordinate SnII(pinF) complexes, featuring a stereochemically-active lone pair, possess low 119Sn NMR chemical shifts and relatively high quadrupolar splitting. Furthermore, the Sn(ii) complexes are unreactive towards both Lewis bases (pyridine, NEt3) and acids (BX3, Et3NH+). Calculations confirm that the Sn(ii) lone pair is localized within the 5s orbital and reveal that the Sn 5px LUMO is energetically inaccessible, which effectively abates reactivity.
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Affiliation(s)
- Jessica K Elinburg
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, MA 02215, USA.
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2
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Sarr B, Diop CAK, Sidibé M, Rousselin Y. Crystal structure of bis-(diiso-propyl-ammonium) cis-di-iodido-bis-(oxolato-κ 2O1, O2)stannate(IV). Acta Crystallogr E Crystallogr Commun 2018; 74:502-504. [PMID: 29765755 PMCID: PMC5946977 DOI: 10.1107/s2056989018003602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 03/01/2018] [Indexed: 11/10/2022]
Abstract
In the title compound, (iPr2NH2)2[SnI2(C2O4)2], which was prepared by reacting ( i Pr2NH2+)2·C2O42- with SnI4 in a 2:1 molar ratio in a mixed ethanol-aceto-nitrile solvent, the Sn atom is coordinated by two chelating oxalate ions and two iodide ions, with the latter in a cis configuration. In the crystal, the cations are linked to the anions by N-H⋯O and bifurcated N-H⋯(O,O) hydrogen bonds, generating [10-1] chains.
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Affiliation(s)
- Bougar Sarr
- Laboratoire de Chimie Minérale et Analytique, Département de Chimie, Faculté des Sciences et Téchniques, Université Cheikh Anta Diop, Dakar, Senegal
| | - Cheikh Abdoul Khadir Diop
- Laboratoire de Chimie Minérale et Analytique, Département de Chimie, Faculté des Sciences et Téchniques, Université Cheikh Anta Diop, Dakar, Senegal
| | - Mamadou Sidibé
- Laboratoire de Chimie Minérale et Analytique, Département de Chimie, Faculté des Sciences et Téchniques, Université Cheikh Anta Diop, Dakar, Senegal
| | - Yoann Rousselin
- ICMUB, UMR CNRS 6302, Universite Bourgogne Franche Comte, 9 avenue Alain Savary, 21078 Dijon cedex, France
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de Lima GM, Walton RI, Clarkson GJ, Bitzer RS, Ardisson JD. Air and moisture stable covalently-bonded tin(ii) coordination polymers. Dalton Trans 2018; 47:8013-8022. [DOI: 10.1039/c8dt01370e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Compounds (1)–(4) display 1D, 2D or 3D coordination networks, in which the Sn(ii) cations exhibit distorted disphenoidal geometries due to the stereochemically active electron lone pairs.
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Affiliation(s)
- G. M. de Lima
- Departamento de Química
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
| | - R. I. Walton
- Department of Chemistry
- University of Warwick
- Coventry
- UK
| | | | - R. S. Bitzer
- Instituto de Química
- Universidade Federal do Rio de Janeiro
- Rio de Janeiro
- Brazil
| | - J. D. Ardisson
- Centro de Desenvolvimento em Tecnologia Nuclear
- CDTN/CNEN
- Belo Horizonte
- Brazil
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Karmakar A, Hazra S, Rúbio GMDM, Guedes da Silva MFC, Pombeiro AJL. Packing polymorphism in 3-amino-2-pyrazinecarboxylate based tin(ii) complexes and their catalytic activity towards cyanosilylation of aldehydes. NEW J CHEM 2018. [DOI: 10.1039/c8nj03805h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
3-Amino-2-pyrazinecarboxylic acid is used to synthesize two new mononuclear interconvertible packing polymorphs of tin(ii) which act as heterogeneous catalysts for the cyanosilylation of aldehydes with trimethylsilyl cyanide.
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Affiliation(s)
- Anirban Karmakar
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- Av. Rovisco Pais
- Lisbon
| | - Susanta Hazra
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- Av. Rovisco Pais
- Lisbon
| | - Guilherme M. D. M. Rúbio
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- Av. Rovisco Pais
- Lisbon
| | | | - Armando J. L. Pombeiro
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- Av. Rovisco Pais
- Lisbon
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Tang B, Yuan H, Cheng L, Zhou X, Huang X, Li J. Control of hydroxyapatite crystal growth by gallic acid. Dent Mater J 2015; 34:108-13. [PMID: 25748466 DOI: 10.4012/dmj.2014-175] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The purpose of this study is to detect the effect of gallic acid (GA) on hydroxyapatie crystal growth and find the mechanism of the regulation. We evaluated the morphology of HAP crystals grown under various amounts of GA (0, 0.05, 1, and 4 gL(-1)). Subsequently, the chemical composition, crystal size and the morphology were investigated via the energy-dispersive X-ray spectrometer, attenuated total fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray diffraction analysis, transmission electron microscope and scanning electron microscopy. In all groups, the Ca/P ratio was closed to 1.67. In the absence of GA, crystals did not arrange, while in the presence of GA, crystals tended to form spherules. The size of the crystals decreased with the concentration of GA increased. These results indicated the role of GA on the growth and morphology of hydroxyapatite crystals, which might be the key mechanism for gallic acid regulating the mineralization.
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Affiliation(s)
- Bei Tang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu; Department of Endodontics and Operative Dentistry, West China Hospital of Stomatology, Sichuan University
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Tang B, Yuan H, Cheng L, Zhou X, Huang X, Li J. Effects of gallic acid on the morphology and growth of hydroxyapatite crystals. Arch Oral Biol 2015; 60:167-73. [DOI: 10.1016/j.archoralbio.2014.09.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 08/10/2014] [Accepted: 09/22/2014] [Indexed: 11/26/2022]
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Reichelt M, Reuter H. catena-Poly[[di-tert-butyl-tin(IV)]-μ-oxalato]. Acta Crystallogr Sect E Struct Rep Online 2014; 70:m133. [PMID: 24826096 PMCID: PMC3998617 DOI: 10.1107/s160053681400539x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 03/10/2014] [Indexed: 11/18/2022]
Abstract
The title compound, [Sn(C4H9)2(C2O4)]n, an unexpected side product in the reaction of di-tert-butyltin(IV) oxide with nitric acid, represents the first diorganotin(IV) oxalate to be structurally characterized. The SnIV atom of the one-dimensional coordination polymer is located on a mirror plane and is coordinated by two chelating oxalate ions with two rather different Sn—O bond lengths of 2.150 (1) and 2.425 (1) Å, and two t-butyl groups with Sn—C bond lengths of 2.186 (2) and 2.190 (2) Å. The coordination polyhedron around the SnIV atom is a distorted tetragonal disphenoid. The centrosymmetric oxalate ion also has an asymmetric coordination geometry, as reflected by the two slightly different C—O bond lengths of 1.242 (2) and 1.269 (2) Å. The chains of the polymer propagate along the b-axis direction. Only van der Waals interactions are observed between the chains.
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Affiliation(s)
- Martin Reichelt
- Institut für Chemie neuer Materialien, Universität Osnabrück, Barbarastrasse 7, D-49069 Osnabrück, Germany
| | - Hans Reuter
- Institut für Chemie neuer Materialien, Universität Osnabrück, Barbarastrasse 7, D-49069 Osnabrück, Germany
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Ghosh R, K. S. A, Pratik SM, Datta A, Nath R, Mandal S. Synthesis, structure, photocatalytic and magnetic properties of an oxo-bridged copper dimer. RSC Adv 2014. [DOI: 10.1039/c4ra01886a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
A new paramagnetic and semiconductor copper citrate dimer exhibits photocatalytic behaviour towards organic dye degradation.
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Affiliation(s)
- Raja Ghosh
- School of Chemistry Indian Institute of Science Education and Research
- Thiruvananthapuram, India-695016
| | - Asha K. S.
- School of Chemistry Indian Institute of Science Education and Research
- Thiruvananthapuram, India-695016
| | - Saied Md. Pratik
- Department of Spectroscopy
- Indian Association for the Cultivation of Science
- Kolkata, India-700032
| | - Ayan Datta
- Department of Spectroscopy
- Indian Association for the Cultivation of Science
- Kolkata, India-700032
| | - Ramesh Nath
- School of Physics
- Indian Institute of Science Education and Research
- Thiruvananthapuram, India-695016
| | - Sukhendu Mandal
- School of Chemistry Indian Institute of Science Education and Research
- Thiruvananthapuram, India-695016
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Lei ZH, Li X, Dong LN. Synthesis, structure, and luminescence of a novel lead(II) coordination polymer with 1,2-phenylenediacetic acid. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2010.07.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Wladimirsky A, Palacios D, D'Antonio MC, González-Baró AC, Baran EJ. Vibrational spectra of tin(II) oxalate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 77:334-335. [PMID: 20547098 DOI: 10.1016/j.saa.2010.04.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2010] [Accepted: 04/28/2010] [Indexed: 05/29/2023]
Abstract
The infrared and Raman spectra of anhydrous tin(II) oxalate, SnC(2)O(4), were recorded and discussed on the basis of its structural peculiarities. Some comparisons with other previously investigated metallic oxalates were made.
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Affiliation(s)
- Alejandra Wladimirsky
- Departamento de Ciencias Básicas, UTN-Unidad Académica Río Gallegos, 9400 Río Gallegos, Argentina
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Ma C, Wu J, Zhang R, Wang Q. A new nine-tin-nuclear mixed mono- and diphenyltin(IV) cage-like macrocycle: Synthesis and crystal structure characterization. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2009.11.044] [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]
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Lazarou KN, Chadjistamatis I, Terzis A, Perlepes SP, Raptopoulou CP. Synthetic, structural and spectroscopic studies of complexes derived from the copper(II) perchlorate/succinamic acid/N,N′-donor tertiary reaction systems. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2009.09.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Tiekink ERT, Zukerman-Schpector J. A structural survey of metal⋯π heteroaromatic supramolecular synthons for metal = tellurium, tin, and gold. CrystEngComm 2009. [DOI: 10.1039/b910209d] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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