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Synthesis and structure of two isomers of a molybdenum(II) 2-butyne complex stabilized by bioinspired S,N-bidentate ligands.

ABSTRACT: The synthesis and structural determination of two isomers of the molybdenum(II) complex (η²-but-2-yne)carbonylbis[2-(4,4-dimethyl-4,5-dihydro-1,3-oxazol-2-yl)benzenethiolato-κ²N,S]molybdenum(II), [Mo(C₁₁H₁₂NOS)₂(C₄H₆)(CO)] or Mo(CO)(C₂Me₂)(S-Phoz)₂, are presented. The N,N-cis-S,S-trans isomer 1 shows quite different bond lengths to the metal atom [Mo-N = 2.4715 (10) versus 2.3404 (11) Å; Mo-S = 2.4673 (3) versus 2.3665 (3) Å]. In the N,N-trans-S,S-cis isomer 2, which is isotypic with the corresponding W complex, the Mo-N bond lengths [2.236 (2) and 2.203 (2) Å], as well as the Mo-S bond lengths [2.5254 (8) and 2.5297 (8) Å], are almost the same.

SUBMITTER: Ehweiner MA

PROVIDER: S-EPMC8981119 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature

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Synthesis and structure of two isomers of a molybdenum(II) 2-butyne complex stabilized by bioinspired S,N-bidentate ligands.

Ehweiner Madeleine A MA Belaj Ferdinand F Mösch-Zanetti Nadia C NC

Acta crystallographica. Section C, Structural chemistry 20220305 Pt 4

The synthesis and structural determination of two isomers of the molybdenum(II) complex (η2-but-2-yne)carbonylbis[2-(4,4-dimethyl-4,5-dihydro-1,3-oxazol-2-yl)benzenethiolato-κ2N,S]molybdenum(II), [Mo(C11H12NOS)2(C4H6)(CO)] or Mo(CO)(C2Me2)(S-Phoz)2, are presented. The N,N-cis-S,S-trans isomer 1 shows quite different bond lengths to the metal atom [Mo-N = 2.4715 (10) versus 2.3404 (11) Å; ...[more]

PMID: 35380124

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