Synthesis and crystal structure of Cu(I) π-complexes with N-allyl-5-amino-1-phenyl-1H-1,2,3-triazole-4-carboxamide [Cu(C12H13N5O)(NO3)] · 0.5H2O and [Cu(C12H13N5O)(CF3COOH)]
Copper(I) π-complexes of the compositions [Cu(C 12 H 13 N 5 O)(NO 3 )] · 0.5H 2 O ( 1 ) and [Cu(C 12 H 13 N 5 O)(CF 3 COO)] ( 2 ) (C 12 H 13 N 5 O is N -allyl-5-amino-1-phenyl-1 H -1,2,3-triazole-4-carboxamide) were obtained by alternating-current electrochemical synthesis, and their crystal structu...
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Published in | Russian journal of inorganic chemistry Vol. 57; no. 6; pp. 815 - 821 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Dordrecht
SP MAIK Nauka/Interperiodica
01.06.2012
|
Subjects | |
Online Access | Get full text |
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Summary: | Copper(I) π-complexes of the compositions [Cu(C
12
H
13
N
5
O)(NO
3
)] · 0.5H
2
O (
1
) and [Cu(C
12
H
13
N
5
O)(CF
3
COO)] (
2
) (C
12
H
13
N
5
O is
N
-allyl-5-amino-1-phenyl-1
H
-1,2,3-triazole-4-carboxamide) were obtained by alternating-current electrochemical synthesis, and their crystal structures were studied by X-ray crystallography. Crystals of the compounds are monoclinic, space group
C
2/
c
with the unit cell parameters
a
= 21.3976(15) Å,
b
= 8.0335(4) Å,
c
= 18.6027(13) Å, β = 114.422(2)°,
V
= 2911.6(3) Å
3
,
Z
= 8 for
1
; and
a
= 18.3578(18) Å,
b
= 9.8700(10) Å,
c
= 20.9094(18) Å, β = 106.883(3)°,
V
= 3625.3(6) Å
3
,
Z
= 8 for
2
. In both structures,
N
-allyl-5-amino-1-phenyl-1
H
-1,2,3-triazole-4-carboxamide acts as a bridging tridentate chelating ligand and forms with copper(I) atoms infinite chains containing [CuC
4
NO] seven-membered rings. The chains are linked to form a three-dimensional framework due to hydrogen bonds (N)H…O, which involve nitrogen atoms of amino and amide groups of the ligand. The coordination sphere of Cu(I) atoms consists of olefin bond of the allyl C=C group, O atom of the carbonyl group, N(3) atom of the triazole nucleus of the organic ligand, and an oxygen atom of nitrate (compound
1
) or trifluoroacetate (compound
2
) anion, respectively. |
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ISSN: | 0036-0236 1531-8613 |
DOI: | 10.1134/S0036023612060216 |