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Main‐Group Metal–Alkyls: Simple Formulae but Complex Structural Chemistry
Author(s) -
Clegg William
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201107519
Subject(s) - group (periodic table) , chemistry , metal , simple (philosophy) , crystal structure , crystallography , contrast (vision) , molecule , computational chemistry , stereochemistry , organic chemistry , physics , optics , philosophy , epistemology
Subtle differences : By using a combination of advanced crystallographic techniques and complementary computational approaches to assess the relative energies and conformational preferences, Me 2 Zn has been shown to form two different crystal structures. At temperatures above 180 K the methyl groups are staggered, whereas below 180 K the methyl groups are eclipsed. In contrast, the two ethyl groups in Et 2 Zn are shown to be mutually cis.