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Molecular and crystal structures of bis‐[2‐ethylamino‐4‐isopropylamino‐6‐methoxy‐1,3,5‐triazine] copper(II) dichloride and bis‐[2,4‐bis(ethylamino)‐6‐methoxy‐1,3,5‐triazine] copper(II) dichloride
Author(s) -
Reck G.,
Kircheiss A.,
Bauwe R.
Publication year - 1980
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.19804700127
Subject(s) - copper , monoclinic crystal system , orthorhombic crystal system , crystallography , chemistry , crystal structure , triazine , group (periodic table) , stereochemistry , polymer chemistry , organic chemistry
Bis‐[2‐ethylamino‐4‐isopropylamino‐6‐methoxy‐l,3,5‐triazine] copper(II) dichloride crystallizes in the monoclinic space group C2/c with 4 formula units C 18 H 34 O 2 N 10 CuCl 2 per unit cell. The cell dimensions are a = 23.465(3), b = 8.059(1), c = 15.427(1)Å, and b̃ = 106.19(1)°. Bis‐[2,4‐bis(ethylamino)‐6‐methoxy‐l,3,5‐triazine] copper(II) dichloride belongs to the orthorhombic space group Pbcn with 4 formula units C 16 H 30 O 2 N 10 CuCl 2 per unit cell, the dimensions of which are a = 19.530(4), b = 8.040(1), and c = 16,006(5)Å. Both complexes are six‐coordinate. The copper coordination geometry, however, is quite an uncommon one. The four closest donor atoms N(5), N(5′), Cl(l) and Cl(l′) form an one‐sided compressed tetrahedron, on the flattend side of which the symmetry related O atoms of the methoxy groups are both linked to the copper atom. The CuO distances (2.75 and 2.78 Å, respectively) are distinctly longer than the bond lengths CuN (2.00 Å in both complexes) and CuCl (2.28 and 2.29 Å, respectively).