# Acid Co(II) and Ni(II) trifluoroacetate complexes: Synthesis and crystal structure

Acid Co(II) and Ni(II) trifluoroacetate complexes: Synthesis and crystal structure Anhydrous and partially hydrated acid trinuclear trifluoroacetates of divalent transition metals of the composition [M3(CF3COO)6(CF3COOH)6)](CF3COOH) and [M3(CF3COO)6(CF3COOH)2(H2O)4)](CF3COOH)2, respectively, where M = Co (I, III) Ni (II, IV), were synthesized and studied by X-ray diffraction. Complexes I and II were obtained by crystallization from solutions of M(CF3COO)2 · 4H2O in trifluoroacetic anhydride; complexes III and IV were synthesized under the same conditions with the use of 99% trifluoroacetic acid as a solvent. Crystals I are triclinic: space group $$P\bar 1$$ , a = 13.199(6) Å, b = 14.649(6) Å, c = 15.818(6) Å, α = 90.04(4)°, β = 114.32(4)°, γ = 108.55(4)°, V = 2611.3(19) Å3, Z = 2, R = 0.0480. Crystals II are trigonal: space group $$R\bar 3$$ , a = 13.307(2) Å, c = 53.13(1) Å, V = 8148(2) Å3, Z = 6, R = 0.1112. Crystals III are triclinic: space group $$P\bar 1$$ , a = 9.001(8) Å, b = 10.379(9) Å, c = 12.119(9) Å, α = 83.67(5)°, β = 72.33(5)°, γ = 83.44(5)°, V = 1068.3(15) Å3, Z = 1 Å, R = 0.1031. Crystals IV are triclinic: space group $$P\bar 1$$ , a = 9.121(18) Å, b = 10.379(2) Å, c = 12.109(2) Å, α = 84.59(3)°, β = 72.20(3)°, γ = 82.80(3)°, V = 1080.94(40) Å3, Z = 1, R = 0.0334. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Coordination Chemistry Springer Journals

# Acid Co(II) and Ni(II) trifluoroacetate complexes: Synthesis and crystal structure

, Volume 32 (9) – Sep 6, 2006
6 pages

/lp/springer_journal/acid-co-ii-and-ni-ii-trifluoroacetate-complexes-synthesis-and-crystal-0oZ0flR8F7
Publisher
Springer Journals
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry
ISSN
1070-3284
eISSN
1608-3318
D.O.I.
10.1134/S1070328406090077
Publisher site
See Article on Publisher Site

### Abstract

Anhydrous and partially hydrated acid trinuclear trifluoroacetates of divalent transition metals of the composition [M3(CF3COO)6(CF3COOH)6)](CF3COOH) and [M3(CF3COO)6(CF3COOH)2(H2O)4)](CF3COOH)2, respectively, where M = Co (I, III) Ni (II, IV), were synthesized and studied by X-ray diffraction. Complexes I and II were obtained by crystallization from solutions of M(CF3COO)2 · 4H2O in trifluoroacetic anhydride; complexes III and IV were synthesized under the same conditions with the use of 99% trifluoroacetic acid as a solvent. Crystals I are triclinic: space group $$P\bar 1$$ , a = 13.199(6) Å, b = 14.649(6) Å, c = 15.818(6) Å, α = 90.04(4)°, β = 114.32(4)°, γ = 108.55(4)°, V = 2611.3(19) Å3, Z = 2, R = 0.0480. Crystals II are trigonal: space group $$R\bar 3$$ , a = 13.307(2) Å, c = 53.13(1) Å, V = 8148(2) Å3, Z = 6, R = 0.1112. Crystals III are triclinic: space group $$P\bar 1$$ , a = 9.001(8) Å, b = 10.379(9) Å, c = 12.119(9) Å, α = 83.67(5)°, β = 72.33(5)°, γ = 83.44(5)°, V = 1068.3(15) Å3, Z = 1 Å, R = 0.1031. Crystals IV are triclinic: space group $$P\bar 1$$ , a = 9.121(18) Å, b = 10.379(2) Å, c = 12.109(2) Å, α = 84.59(3)°, β = 72.20(3)°, γ = 82.80(3)°, V = 1080.94(40) Å3, Z = 1, R = 0.0334.

### Journal

Russian Journal of Coordination ChemistrySpringer Journals

Published: Sep 6, 2006

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