TY - JOUR
T1 - Syntheses and crystal structures of two new pentaborates
AU - Wang, Guo Ming
AU - Sun, Yan Qiong
AU - Yang, Guo Yu
PY - 2005/3
Y1 - 2005/3
N2 - Two new pentaborates, [Zn(DIEN)2][B5O 6(OH)4]2 (DIEN=diethylenetriamine) (I) and [B5O7(OH)3Zn(TREN)] (TREN=tris(2-aminoethyl) amine) (II), have been hydrothermally synthesized and characterized by single crystal X-ray diffraction, FTIR, elemental analysis and thermogravimetric analysis. Compound I crystallizes in the monoclinic system, space group P2 1/c (No. 14), a=8.5686(2)Å, b=11.7883(3)Å, c=14.5407(6)Å, β=91.259(2)°, V=1468.39(8)Å3, Z=2. The structure consists of isolated borate polyanion [B5O 6(OH)4]- and zinc complex cation [Zn(DIEN) 2]2+. The anionic units, [B5O 6(OH)4]-, are linked by hydrogen bonds to form a 3D supramolecular network containing large channels, in which the templating [Zn(DIEN)2]2+ cation are located. II is monoclinic, P21/c (No. 14), a=8.9969(2)Å, b=20.6903(6)Å, c=9.2878(3)Å, β=99.635(2)°, V=1704.52(8)Å3, Z=4. The structure of II is constructed from two distinct motifs, a usual [B 5O7(OH)3]2- cluster and a supporting zinc complex [Zn(TREN)]2+, which are integrated through Zn-O-B linkage. This compound represents the first example of the combination of B-O cluster with transition-metal complex.
AB - Two new pentaborates, [Zn(DIEN)2][B5O 6(OH)4]2 (DIEN=diethylenetriamine) (I) and [B5O7(OH)3Zn(TREN)] (TREN=tris(2-aminoethyl) amine) (II), have been hydrothermally synthesized and characterized by single crystal X-ray diffraction, FTIR, elemental analysis and thermogravimetric analysis. Compound I crystallizes in the monoclinic system, space group P2 1/c (No. 14), a=8.5686(2)Å, b=11.7883(3)Å, c=14.5407(6)Å, β=91.259(2)°, V=1468.39(8)Å3, Z=2. The structure consists of isolated borate polyanion [B5O 6(OH)4]- and zinc complex cation [Zn(DIEN) 2]2+. The anionic units, [B5O 6(OH)4]-, are linked by hydrogen bonds to form a 3D supramolecular network containing large channels, in which the templating [Zn(DIEN)2]2+ cation are located. II is monoclinic, P21/c (No. 14), a=8.9969(2)Å, b=20.6903(6)Å, c=9.2878(3)Å, β=99.635(2)°, V=1704.52(8)Å3, Z=4. The structure of II is constructed from two distinct motifs, a usual [B 5O7(OH)3]2- cluster and a supporting zinc complex [Zn(TREN)]2+, which are integrated through Zn-O-B linkage. This compound represents the first example of the combination of B-O cluster with transition-metal complex.
KW - Borates
KW - Crystal structure
KW - Hydrothermal synthesis
KW - Pentaborate
KW - Zinc
UR - http://www.scopus.com/inward/record.url?scp=17744374964&partnerID=8YFLogxK
U2 - 10.1016/j.jssc.2004.11.016
DO - 10.1016/j.jssc.2004.11.016
M3 - Article
AN - SCOPUS:17744374964
SN - 0022-4596
VL - 178
SP - 729
EP - 735
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
IS - 3
ER -
