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Die Strukturen der mittleren Ringverbindungen VI. 1,6‐ cis ‐Diaminocyclodecan‐dihydrochlorid
Author(s) -
Dunitz J. D.,
Venkatesan K.
Publication year - 1961
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19610440729
Subject(s) - chemistry , monoclinic crystal system , crystallography , crystal structure , ring (chemistry) , tetrahedron , stereochemistry , organic chemistry
Crystals of 1,6‐ cis ‐diaminocyclodecane dihydrochloride dihydrate are monoclinic, a = 8,145, b = 22,933, c = 9,393 A; β = 118° 20′; Z = 4; space group P2 1 /c. The crystal structure has been determined by analysis of the three‐dimensional P ATTERSON function and refined by F OURIER and least squares methods using isotropic temperature factors. The conformation of the ring is the same as that observed for the trans ‐compound and the substituents occur on carbon atoms of type II, as predicted. The observed CCC angles are all larger than the tetrahedral angle, and range from about 113° to 120°.