Journal
ORGANOMETALLICS
Volume 33, Issue 17, Pages 4433-4441Publisher
AMER CHEMICAL SOC
DOI: 10.1021/om500649d
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The syntheses of the intramolecularly coordinated organotin-substituted transition metal complexes [RSn{W(CO)(3)Cp}(2)}[W(CO)(3)Cp] (2, R = 4-t-Bu-2,6-{P(O)(Oi-Pr)(2)}(2)C6H2), [RSn{W(CO)(3)Cp}Cl-2] (4, R = 4-t-Bu-2,6-{P(O)(Oi-Pr)(2)}(2)C6H2), and [RSn{W(CO)(3)Cp}Cr(CO)(5)] (5, R = 4-t-Bu-2,6-{P(O)(OEt)(2)}(2)C6H2) are reported. The reaction of compound 2 with Ph4B+Br- gave the benzoxaphosphastannole [1(P),3(Sn)-Sn[W(CO)(3)Cp](2)OP(O)(Oi-Pr)-6-t-Bu-4-P(O)(Oi-Pr)(2)C6H2] (3). The compounds are characterized by H-1, C-13, P-31, Sn-119 NMR and IR spectroscopy and, except for 3, by single crystal X-ray diffraction analysis. The experimental work is accompanied by DFT calculations.
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