Reactions of tin(IV) complexes of the type Sn(PyS)2X2 (X = Cl, PyS, Ph; PyS = pyridine-2-thiolate) with Pd(PPh3)4 provide easy access to novel heterometallic complexes with Pd-Sn bonds. Electronic characteristics of this connection were analysed by X-ray crystallography, (119)Sn Mössbauer spectroscopy and quantum chemical analyses.
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http://dx.doi.org/10.1039/c3cc47912a | DOI Listing |
Dalton Trans
March 2019
Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Departamento de Química Inorgánica, Universidad de Zaragoza - CSIC, 50009 Zaragoza, Spain.
Anionic cyclometalated complexes (NBu)[Pt(CNC)X] (X = Cl (1), CN (2), or S-2py (pyridine-2-thiolate) (3); -CNC- = 2,6-di(phen-2-ide)-pyridine) have been used as precursors in the synthesis of heteropolynuclear Pt-Ag or Pt-Tl complexes containing donor-acceptor metal-metal bonds. Their reaction with AgClO or [Ag(OClO)(PPh)] produces complexes in which the nuclearity and structure seem to be determined by the ability of the ligand X to form bridges between the metals. Thus, the characteristic linear bridging of the cyano ligand leads to the formation of an octanuclear [{Pt(CNC)(μ-CN)}Ag] (4) or tetranuclear [{Pt(CNC)(μ-CN)}{Ag(PPh)}] (6) complex, with CN bridges between different "Pt-Ag" units.
View Article and Find Full Text PDFChemistry
March 2017
Institut für Anorganische Chemie, TU Bergakademie Freiberg, Leipziger Straße 29, 09596, Freiberg, Germany.
The paddlewheel-shaped complex [Sb(μ-pyS) Rh] (1) (pyS = 2-S-C H N ) was synthesized from [Rh(pyS)(cod)] (cod=1,5-cyclooctadiene) and Sb(pyS) . Upon oxidation with ONMe , the complex [(μ-O)Sb(μ-pyS) Rh(κ -pyS)] (2) is formed. Both 1 and 2 form dimers and feature short Rh-Sb bonds and bridging pyS ligands.
View Article and Find Full Text PDFDalton Trans
September 2016
TU Bergakademie Freiberg, Institut für Anorganische Chemie, Leipziger Strasse 29, 09596 Freiberg, Germany.
A series of new complexes of a general motif [R2E(μ-N,S)2TM-L] (E: metalloid group 14 element; TM: group 10 metal; R: Cl, Ph, pyS, OH, (N,N,O)-chelating ligands; N,S: 1-methylimidazole-2-thiolate (methimazolyl, mt(-)), pyridine-2-thiolate (pyS(-)); L: PPh3, PCy3, pyS) was synthesised and characterised by single-crystal X-ray diffraction, multi-nuclear NMR spectroscopy ((1)H, (13)C, (31)P, (119)Sn), (119)Sn Mössbauer spectroscopy and quantum chemical calculations. The E-TM bonding situation in these compounds can be described with various resonance structures which comprise E(ii)→TM(ii), E(iii)-TM(i) and E(iv)←TM(0) features. Thus, in these complexes the atoms of the group 14 based ligand sites reveal L-, X- and Z-type ligand characteristics.
View Article and Find Full Text PDFInorg Chem
August 2016
Departamento de Química, Centro de Síntesis Química de La Rioja, Universidad de La Rioja , Logroño 26006, Spain.
Platinum solvate complexes [Pt(C6F5)(C^N)(S)] [C^N = phenylpyridinyl (ppy), S = dimethyl sulfoxide (DMSO) (A); C^N = benzoquinolinyl (bzq), S = CH3COCH3 (B)] react with [Tl(Spy)] (Spy = 2-pyridinethiolate) to afford binuclear [{Pt(C6F5)(C^N)}Tl(Spy)] [C^N = ppy (1) and bzq (2)] species containing a Pt-Tl bonding interaction, supported by a μ-Spy-κN,S bridging ligand, as confirmed by X-ray diffraction. However, the related reactions with [Tl(SpyCF3-5)] [SpyCF3-5 = 5-(trifluoromethyl)-2-pyridinethiolate] give neutral extended chains [{Pt(C6F5)(C^N)}Tl(SpyCF3-5)]n [C^N = ppy (3) and bzq (4)]. 3 features a zigzag -Pt-Tl···S-Pt- chain, generated by Pt-Tl and Tl···S bonds, with the SpyCF3 acting as a μ-κN:κ(2)S bridging ligand, whereas 4 displays an unsupported ···Tl-Pt···Tl-Pt··· backbone (angle of ca.
View Article and Find Full Text PDFChem Commun (Camb)
May 2014
Institut für Anorganische Chemie, TU Bergakademie Freiberg, D-09596 Freiberg, Germany.
Reactions of tin(IV) complexes of the type Sn(PyS)2X2 (X = Cl, PyS, Ph; PyS = pyridine-2-thiolate) with Pd(PPh3)4 provide easy access to novel heterometallic complexes with Pd-Sn bonds. Electronic characteristics of this connection were analysed by X-ray crystallography, (119)Sn Mössbauer spectroscopy and quantum chemical analyses.
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