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The Crystal Structure of the THF Adduct of Monolithioferrocene
Author(s) -
Förster Christoph,
Heinze Katja
Publication year - 2015
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201400548
Subject(s) - tetrahydrofuran , monoclinic crystal system , molecule , chemistry , crystallography , ring (chemistry) , adduct , crystal structure , eclipsed conformation , lithium (medication) , group (periodic table) , stereochemistry , solvent , organic chemistry , medicine , endocrinology
Single crystals of [Fe(η 5 ‐C 5 H 4 )(η 5 ‐C 5 H 5 )] 2 Li 2 (thf) 4 ( 1 ) were obtained from a tetrahydrofuran solution containing monolithioferrocene. The title compound crystallizes in the monoclinic space group P 2 1 with a = 9.6589(5) Å, b = 17.4285(9) Å, c = 30.3116(15) Å, β = 91.911(2)° and V = 5099.8(5) Å 3 with three independent molecules of 1 . All individual molecules feature a non‐ symmetric almost planar Li 2 C 2 four‐membered ring with two shorter (2.118–2.215 Å) and two longer Li–C distances (2.257–2.309 Å). The lithium cations are each coordinated by two carbanionic atoms of two ferrocenyl substituents and two tetrahydrofuran molecules in a distorted tetrahedral fashion. All ferrocenyl moieties display an eclipsed conformation of the C 5 rings.