Structure of Hydrated Copper(II) Colchiceine
Keyword(s):
R Factor
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Hydrated crystals of copper(II) colchiceine belong to the tetragonal space group P 432I2 with a 13·415(1), c 50·169(8) Å and Z 8. The structure has been refined to a conventional R factor of 0·077 for 4560 observed data. The tropolonic oxygens from two colchiceine molecules are coordinated to the copper atom in this bis-chelated complex to form a square planar arrangement. The sites of three of the waters are clearly defined, but the others are disordered over seven partially occupied sites. An intricate hydrogen-bonding system links the complex and water molecules into a three-dimensional network in the crystal.
2006 ◽
Vol 62
(7)
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pp. o2951-o2952
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2012 ◽
Vol 68
(10)
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pp. o405-o407
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2013 ◽
Vol 69
(12)
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pp. m663-m663
2016 ◽
Vol 72
(5)
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pp. 751-755
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2006 ◽
Vol 62
(4)
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pp. m796-m798
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2007 ◽
Vol 63
(3)
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pp. m761-m763
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2012 ◽
Vol 68
(8)
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pp. m1127-m1128
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2012 ◽
Vol 68
(4)
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pp. m402-m403
2000 ◽
Vol 56
(1)
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pp. 142-154
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2013 ◽
Vol 69
(11)
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pp. m602-m603
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