119mSn-Mössbauer-spektren von funktionell substituierten stannylenen und ihren stannio-komplexen mit chrom,molybdän- und wolfram-carbonyl-acceptoren |
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| Authors: | W-W Du Mont JL Lefferts JJ Zuckerman |
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| Institution: | Institut für Anorganische und Analytische Chemie der Technischen Universität Berlin, Strasse des 17. Juni 135, D 1000 Berlin 12 Deutschland;Department of Chemistry, University of Oklahoma, Norman, OK 73019 U.S.A. |
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| Abstract: | 119mSn Mössbauer data for a series of base-stabilized, intermolecularly associated tin(II) compounds ith O, Cl, P and As atoms bonded to tin are compared with isomer shifts (IS) and quadrupole splittings (QS) of their stannio complex derivatives with Cr, Mo and W carbonyls. Coordination at the tin lone-pair atom decreases IS to ca. 2.1 ± 0.2 mm s?1 and increases the QS. QS values reflect the highly associated nature of the complexes (CO)5MSn(Cl)E(t-Bu)2 (M Cr, W; E P, As) which are bridged through μ-E(t-Bu)2 groups. |
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