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Crystallographic Studies of Synthetic Corrinoids IV. Molecular Structure of a Ni(II)Oxa-porphyrinoid from Electrochemical Oxidation of a Ni(II) Seco-Corrin

✍ Scribed by Keith O. Hodgson; Jack D. Dunitz

Publisher: John Wiley and Sons
Year: 1976
Tongue: German
Weight: 411 KB
Volume: 59
Category: Article
ISSN: 0018-019X
DOI: 10.1002/hlca.19760590547

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✦ Synopsis

Abstract

X‐ray analysis of a crystalline product obtained by electrochemical oxidation of the Ni(II)‐seco‐corrinoid 1 has established the structure as that of a 1,19 oxygen‐bridged porphyrinoid 2. The crystals (perchlorate salt of 2) are triclinic, space group P1, with a = 10.205, b = 11.616, c = 14.52Å, α = 115.30, β = 107.34, γ = 85.90°, Z = 2. The structure was solved by the heavy‐atom method and refined by full‐matrix least‐squares analysis to a final R factor of 9.4%. Some features of the molecular structure are discussed.

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Crystallographic Studies of Synthetic Co

Crystallographic Studies of Synthetic Corrinoids. II. Molecular structure of a C/D-seco-corrinoid nickel(II) complex

✍ M. Dobler; J. D. Dunitz 📂 Article 📅 1971 🏛 John Wiley and Sons 🌐 German ⚖ 456 KB

D , = 1.39; space group Pi-(assumed from racemic nature of synthetic product). c) Crystallized from methanolethyl acetate solution: monoclinic, a = 9.94, b = 21.12, c = 14.9 A, = 92"55', V = 3039 A3, D , = 1.32 (assuming 2 = 4), D , = 1.35; space group PZJn (2nd setting). d ) Crystallized from metha