Synthese und Kristallstruktur von [VCl2(15-Krone-5)]+[VOCl4]- / Synthesis and Crystal Structure of [VCl2(15-Crown-5)]+[VOCl4]-
1990 ◽
Vol 45
(10)
◽
pp. 1393-1397
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Keyword(s):
X Ray
◽
[VCl2(15-crown-5)]+[VOCl4]- has been prepared by the reaction of VCl4 with 15-crown-5 in acetonitrile solution in the presence of water, forming black-brown single crystals. They were characterized by IR spectroscopy as well as by an X-ray structure determination. Space group Pnma, Z = 4, 1530 observed unique reflexions, R = 0.052. Lattice dimensions at -120°C: a = 1128.5(4), b = 1063.3(3), c = 1680(1) pm. The compound forms ions, in which the cation contains vanadium(+III), which is seven coordinate by the five oxygen atoms of the crown ether molecule and by two chlorine atoms in axial positions of a pentagonal bipyramide. The [VOCl4]- anion contains vanadium (+V) with approximately tetragonal symmetry
1990 ◽
Vol 45
(8)
◽
pp. 1210-1212
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1991 ◽
Vol 46
(8)
◽
pp. 1015-1019
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1998 ◽
Vol 53
(7)
◽
pp. 774-776
◽
1990 ◽
Vol 45
(8)
◽
pp. 1128-1132
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Keyword(s):