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Non‐order–disorder allotwinning of the rhenium pincer complex cis ‐Re[(PNP CH2 ‐ i Pr)(CO) 2 Cl]
Author(s) -
Glatz Mathias,
Stöger Berthold,
Kirchner Karl
Publication year - 2017
Publication title -
acta crystallographica section b
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.604
H-Index - 33
ISSN - 2052-5206
DOI - 10.1107/s205252061701006x
Subject(s) - rhenium , pincer movement , order (exchange) , chemistry , inorganic chemistry , biochemistry , finance , economics , catalysis
Crystals of cis ‐Re[(PNP CH2 ‐ i Pr)(CO) 2 Cl] (1) are made up of two geometrically non‐equivalent polytypes with respective symmetries of P 2 1 / c and I 2/ a . The structures were determined in a concurrent refinement, taking into account overlap of diffraction spots. The polytypes are composed of layers with p x 12 1 / c 1 symmetry and are of the non‐order–disorder (OD) type (the layer interfaces are non‐equivalent). Whereas the molecules of (1) differ in both polytypes, the Re atoms are located at nearly identical positions.