Tetrakis(μ-benzothiazole-2-thiolato)-1:2κ4N:S2;1:2κ4S2:N-dichloro-1κCl,2κCl-dirhenium(III)(Re—Re) dichloromethane solvate: a bridged complex with a long Re—Re quadruple bond

Horne, Keri T.; Powell, Gregory L.; Daniels, Lee M.

doi:10.1107/s0108270102004249

Cited by 4 publications

(2 citation statements)

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“…We therefore sought to investigate Re(I) tricarbonyl NHC complexes where the NHC ligand was characterized by a N^C^S motif, as a comparative study to our previous Re(I) NHC complexes. Furthermore, we endeavored to prepare the analogous complexes by binding the precursor ligand containing the thiazolethione functional group to the Re(I) center, given that Re(I) complexes coordinated to thione ligands are not currently common in the literature. − The work presented herein describes the synthesis and structural determination of these complexes, along with the investigation of their ligand substitution reactions from the ground and excited states through a combination of UV–vis, IR, and NMR spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Photochemical Properties of Re(I) Tricarbonyl Complexes Bound to Thione and Thiazol-2-ylidene Ligands

et al. 2020

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Three Re(I) tricarbonyl complexes, with the general formulation Re(N^L)(CO) 3 X (where N^L is a bidentate ligand containing a pyridine functionalized at position 2 with a thione or a thiazol-2-ylidene group and X is either chloro or bromo), were synthesized and their reactivities explored in terms of solventdependent ligand substitution, in both the ground and excited states. When they were dissolved in acetonitrile, the complexes bound to the thione ligand underwent reversible ligand exchange with the solvent, resulting in the formation of Re(NCMe) 2 (CO) 3 X; the starting complex could be re-formed by precipitation following addition of diethyl ether. On the other hand, the complexes appeared to be inert in dichloromethane or acetone. Conversely, the complex bound to the thiazol-2-ylidene ligand did not display any ligand exchange reaction in the dark but underwent photoactivated ligand substitution on excitation to its lowest metal to ligand charge transfer manifold. Photolysis of this complex in acetonitrile generated multiple products, including Re(I) tricarbonyl and dicarbonyl solvato complexes as well as free thiazol-2-ylidene ligand.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Photochemical Properties of Re(I) Tricarbonyl Complexes Bound to Thione and Thiazol-2-ylidene Ligands

et al. 2020

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“…Furthermore, we endeavoured to prepare the analogous complexes by binding the precursor ligand containing the thiazolethione functional group to the Re(I) centre, given Re(I) complexes coordinated to thiazole-2-thione ligands are not currently common in the literature. [42][43][44][45][46][47] The work presented herein describes the synthesis and structural determination of these complexes, along with the investigation of their ligand substitution reactions from the ground and excited states through a combination of UV-Vis, IR and NMR spectroscopies.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Photochemical Properties of Re(I) Tricarbonyl Complexes Bound to Thione and Thiazole-2-ylidene Ligands

Stout¹,

Skelton²,

Sobolev³

et al. 2020

Preprint

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Three Re(I) tricarbonyl complexes, with general formulation Re(N^L)(CO)3X (where N^L is a bidentate ligand containing a pyridine functionalized in the position 2 with a thione or a thiazol-2-ylidene group and X is either chloro or bromo) were synthesized and their reactivity explored in terms of solvent-dependent ligand substitution, both in the ground and excited states. When dissolved in acetonitrile, the complexes bound to the thione ligand underwent ligand exchange with the solvent resulting in the formation of Re(NCMe)2(CO)3X. The exchange was found to be reversible, and the starting complex was reformed upon removal of the solvent. On the other hand, the complexes appeared inert in dichloromethane or acetone. Conversely, the complex bound to the thiazole-2-ylidene ligand did not display any ligand exchange reaction in the dark, but underwent photoactivated ligand substitution when excited to its lowest metal-to-ligand charge transfer manifold. Photolysis of this complex in acetonitrile generated multiple products, including Re(I) tricarbonyl and dicarbonyl solvato-complexes as well as free thiazole-2-ylidene ligand.

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Disilicon Complexes with Two Hexacoordinate Si Atoms: Paddlewheel‐Shaped Isomers with (ClN₄)SiSi(S₄Cl) and (ClN₂S₂)SiSi(S₂N₂Cl) Skeletons

Wagler¹,

Brendler²,

Heine³

et al. 2013

Chemistry A European J

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The reaction of 1-methyl-3-trimethylsilylimidazoline-2-thione with hexachlorodisilane proceeds toward substitution of four of the disilane Cl atoms during the formation of disilicon complexes with two neighboring hexacoordinate Si atoms. The N,S-bidentate methimazolide moieties adopt a buttressing role, thus forming paddlewheel-shaped complexes of the type ClSi(μ-mt)4 SiCl (mt=methimazolyl). Most interestingly, three isomers (i.e., with (ClN4 )SiSi(S4 Cl), (ClN3 S)SiSi(S3 NCl), and (ClN2 S2 )SiSi(S2 N2 Cl) skeletons as so-called (4,0), (3,1), and cis-(2,2) paddlewheels) were detected in solution by using (29) Si NMR spectroscopic analysis. Two of these isomers could be isolated as crystalline solids, thus allowing their molecular structures to be analyzed by using X-ray diffraction studies. In accord with time-dependent NMR spectroscopy, computational analyses proved the cis-(2,2) isomer with a (ClN2 S2 )SiSi(S2 N2 Cl) skeleton to be the most stable. The compounds presented herein are the first examples of crystallographically evidenced disilicon complexes with two SiSi-bonded octahedrally coordinated Si atoms and representatives of the still scarcely explored class of Si coordination compounds with sulfur donor atoms.

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Tetrakis(μ-benzothiazole-2-thiolato)-1:2κ⁴N:S²;1:2κ⁴S²:N-dichloro-1κCl,2κCl-dirhenium(III)(Re—Re) dichloromethane solvate: a bridged complex with a long Re—Re quadruple bond

Cited by 4 publications

References 5 publications

Synthesis and Photochemical Properties of Re(I) Tricarbonyl Complexes Bound to Thione and Thiazol-2-ylidene Ligands

Synthesis and Photochemical Properties of Re(I) Tricarbonyl Complexes Bound to Thione and Thiazol-2-ylidene Ligands

Synthesis and Photochemical Properties of Re(I) Tricarbonyl Complexes Bound to Thione and Thiazole-2-ylidene Ligands

Disilicon Complexes with Two Hexacoordinate Si Atoms: Paddlewheel‐Shaped Isomers with (ClN₄)SiSi(S₄Cl) and (ClN₂S₂)SiSi(S₂N₂Cl) Skeletons

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Tetrakis(μ-benzothiazole-2-thiolato)-1:2κ4N:S2;1:2κ4S2:N-dichloro-1κCl,2κCl-dirhenium(III)(Re—Re) dichloromethane solvate: a bridged complex with a long Re—Re quadruple bond

Cited by 4 publications

References 5 publications

Synthesis and Photochemical Properties of Re(I) Tricarbonyl Complexes Bound to Thione and Thiazol-2-ylidene Ligands

Synthesis and Photochemical Properties of Re(I) Tricarbonyl Complexes Bound to Thione and Thiazol-2-ylidene Ligands

Synthesis and Photochemical Properties of Re(I) Tricarbonyl Complexes Bound to Thione and Thiazole-2-ylidene Ligands

Disilicon Complexes with Two Hexacoordinate Si Atoms: Paddlewheel‐Shaped Isomers with (ClN4)SiSi(S4Cl) and (ClN2S2)SiSi(S2N2Cl) Skeletons

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Tetrakis(μ-benzothiazole-2-thiolato)-1:2κ⁴N:S²;1:2κ⁴S²:N-dichloro-1κCl,2κCl-dirhenium(III)(Re—Re) dichloromethane solvate: a bridged complex with a long Re—Re quadruple bond

Disilicon Complexes with Two Hexacoordinate Si Atoms: Paddlewheel‐Shaped Isomers with (ClN₄)SiSi(S₄Cl) and (ClN₂S₂)SiSi(S₂N₂Cl) Skeletons