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- W1971277249 abstract "Abstract 1 H NMR data are reported for the series of octahedral tin(IV) complexes Sn(TPP) (OCOH)X, where TPP is 5,10,15,20-tetraphenylporphyrin and X = OSO 2 CF 3 , ONO 2 , NCS, OCOCF 3 , OCOH, OCOC 6 H 4 - o -OH, OCOC 6 H 5 , OCOCH 3 , OC 6 H 4 - p -CH 3 , OH, OCH 3 , F, C1, Br and I. The mixed-ligand complexes were generated as mixtures also containing the symmetrical complexes Sn(TPP)(OCOH) 2 and Sn(TPP)X 2 . The chemical shifts of the formate protons and the tin-proton coupling constants, 3 J (SnOC(O)H), show a fair correlation with the basicity of the ligand X for the O-bound ligands, but the halide complexes demonstrate the importance of π-bonding. The trans -influence and cis -influence are in the same direction, ie. a ligand which weakens the bond to the trans -formate ligand, also weakens the tin-porphyrin coordination." @default.
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- W1971277249 date "1990-01-01" @default.
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- W1971277249 title "Tin(IV) porphyrin complexes—III. NMR trans-influences in tin(IV) tetraphenylporphyrin complexes" @default.
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- W1971277249 doi "https://doi.org/10.1016/s0277-5387(00)86772-8" @default.
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