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Crystal Structure of Sarcosine Cadmium Chloride
Author(s) -
Krishnakumar R. V.,
Rameela M. P.,
Natarajan S.
Publication year - 1996
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170310214
Subject(s) - chemistry , sarcosine , cadmium chloride , cadmium , crystal structure , molecule , crystallography , hydrogen bond , aqueous solution , zwitterion , chloride , triclinic crystal system , inorganic chemistry , amino acid , glycine , organic chemistry , biochemistry
Single crystals of sarcosine cadmium chloride were crystallised from a saturated aqueous solution containing stoichiomeric amounts of sarcosine and cadmium chloride, in 1:1 proportion. The intensity data were collected using a CAD‐4 diffractometer with graphite monochromated MoK α , radiation. The crystal data are as follows: a = 6.916(1) Å, b = 13.855(3) Å, c = 7.981(1) Å, V = 764.1 Å · F.W. = 272.4, d expt = 2.39 g · cm −3 , d calc = 2.368 g · cm −3 , Z = 4 and the space group is P2 1 /n. The structure has been solved to an R value of 0.023 for all the 1323 reflections with I > 2σ( I ). The sarcosine molecule exists as zwitterion in the structure. The conformation of the sarcosine molecule is significantly changed due to the complexation of the molecule with cadmium chloride. The cadmium ion is found to have an octahedral coordination with both the oxygens of the carboxyl group of the amino acid and chlorines taking part in it. Since the complex has no water of hydration, only two hydrogen bonds of the types NH ‥ O and NH ‥ Cl are found.