TY - JOUR
T1 - A polyoxoniobate based on dimeric hexanionbate
T2 - [Cu(en)2] 4{[Nb6O19H2]K(H2O) 2}2 (H2en) 17H2O
AU - Guo, Gui Ling
AU - Xu, Yan Qing
AU - Hu, Chang Wen
PY - 2010/9/20
Y1 - 2010/9/20
N2 - A polyoxoniobate, [Cu(en)2]4{[Nb6O 19H2]K(H2O)2}2 (H 2en) 17H2O (en = ethylenediamine) (1), has been synthesized and characterized by elemental analysis, IR, XPS, TGA, and single-crystal X-ray diffraction. Compound 1 crystallizes in the triclinic system, space group P1̄, with a = 12.3533(16)Ä , b = 12.7188(16)Ä , c = 29.626(4)Ä, α= 93.235(2)°, β= 96.094(1)°, γ= 106.098(2)°, V = 4429.0(10)Ä3, Z = 2. The polyoxoanion is composed of a Lindqvist-type [Nb6O19H 2]6- dimer bi-bridged via two K+. K+ is 10-coordinate with 10 oxygens, three from one [Nb6O19H2]6-, one from a terminal oxygen of another [Nb6O19H2]6- moiety, and the other six from water molecule. Adjacent dimeric polyoxoanions are linked to form an infinite 1-D chain via O-H O hydrogen-bonding interactions which exist between the two water trimers and the dimeric polyoxoanions.
AB - A polyoxoniobate, [Cu(en)2]4{[Nb6O 19H2]K(H2O)2}2 (H 2en) 17H2O (en = ethylenediamine) (1), has been synthesized and characterized by elemental analysis, IR, XPS, TGA, and single-crystal X-ray diffraction. Compound 1 crystallizes in the triclinic system, space group P1̄, with a = 12.3533(16)Ä , b = 12.7188(16)Ä , c = 29.626(4)Ä, α= 93.235(2)°, β= 96.094(1)°, γ= 106.098(2)°, V = 4429.0(10)Ä3, Z = 2. The polyoxoanion is composed of a Lindqvist-type [Nb6O19H 2]6- dimer bi-bridged via two K+. K+ is 10-coordinate with 10 oxygens, three from one [Nb6O19H2]6-, one from a terminal oxygen of another [Nb6O19H2]6- moiety, and the other six from water molecule. Adjacent dimeric polyoxoanions are linked to form an infinite 1-D chain via O-H O hydrogen-bonding interactions which exist between the two water trimers and the dimeric polyoxoanions.
KW - Dimer
KW - Lindqvist type
KW - Polyoxoniobate
KW - Trimer
UR - http://www.scopus.com/inward/record.url?scp=77956203149&partnerID=8YFLogxK
U2 - 10.1080/00958972.2010.510185
DO - 10.1080/00958972.2010.510185
M3 - Article
AN - SCOPUS:77956203149
SN - 0095-8972
VL - 63
SP - 3137
EP - 3145
JO - Journal of Coordination Chemistry
JF - Journal of Coordination Chemistry
IS - 18
ER -