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Catena-Poly[[[diaqua-terbium(III)]-tri-?(2)-isonicotinato-?O:O'] tris(perchlorate) monohydrate].

ABSTRACT: In the title complex, {[Tb(C(6)H(5)NO(2))(3)(H(2)O)(2)](ClO(4))(3)·H(2)O}(n), the Tb(III) ion is coordinated by six O atoms from six isonicotinate (inic) ligands and two water mol-ecules, displaying a bicapped trigonal-prismatic geometry. The inic ligands, which are protonated at the pyridine N atom, link the metal centres, forming a polymeric chain running parallel to the a axis. The chains are further assembled via intra- and inter-molecular O-H?O and N-H?O hydrogen-bonding inter-actions into a three-dimensional supra-molecular network involving the inic ligands, the water mol-ecules and the perchlorate anions. One of the perchlorate ions is disordered over two sites with occupancies of 0.561?(17) and 0.439?(17).

SUBMITTER: Huang XH

PROVIDER: S-EPMC2962002 | biostudies-literature | 2008 Jul

REPOSITORIES: biostudies-literature

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catena-Poly[[[diaqua-terbium(III)]-tri-μ(2)-isonicotinato-κO:O'] tris(perchlorate) monohydrate].

Huang Xiao-Hui XH Pan Wei-Bo WB Xu Xiao-Hong XH Zeng Rong-Hua RH

Acta crystallographica. Section E, Structure reports online 20080731 Pt 8

In the title complex, {[Tb(C(6)H(5)NO(2))(3)(H(2)O)(2)](ClO(4))(3)·H(2)O}(n), the Tb(III) ion is coordinated by six O atoms from six isonicotinate (inic) ligands and two water mol-ecules, displaying a bicapped trigonal-prismatic geometry. The inic ligands, which are protonated at the pyridine N atom, link the metal centres, forming a polymeric chain running parallel to the a axis. The chains are further assembled via intra- and inter-molecular O-H⋯O and N-H⋯O hydrogen-bonding inter-actions into ...[more]

PMID: 21203072

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Poly[diaqua-?(2)-isonicotinato-?(2)-oxalato-terbium(III)].

Project description:In the crystal structure of the title complex, [Tb(C(6)H(4)NO(2))(C(2)O(4))(H(2)O)(2)](n), the Tb(III) cation is coordinated by four O atoms from two oxalate ligands, two O atoms from two isonicotinate ligands and two O atoms from water mol-ecules within a distorted square-anti-prismatic coordination. The Tb(III) cation, the isonicotinate anion and the two crystallographically independent water mol-ecules occupy general positions, whereas one of the two crystallographically independent oxalate anions is located on a center of inversion, and the second oxalate anion is located on a twofold rotation axis. The Tb(III) cations are linked by the oxalate and isonicotinate anions into layers, which are connected via inter-molecular hydrogen-bonding and ?-? stacking [with centroid-to-centroid distances of 3.509?(2) and 3.343?(3)?Å] inter-actions into a three-dimensional network.

| S-EPMC2968018 | biostudies-literature

Poly[diaqua-?(2)-isonicotinato-?(2)-oxalato-terbium(III)].

Project description:In the crystal structure of the title complex, [Tb(C(6)H(4)NO(2))(C(2)O(4))(H(2)O)(2)](n), the Tb(III) ion is coordinated by two O atoms from two isonicotinate (inic) anions, four O atoms of two oxalate anions, and two water mol-ecules, displaying a distorted square-antiprismatic geometry. The Tb(III) ion, the inic anion and the water mol-ecules occupy general positions. One of the two crystallographically independent oxalate anions is located on a center of inversion, whereas the second is located on the twofold rotation axis. The carboxyl-ate groups of the inic and oxalate anions link the terbium metal centres into layers. These layers are connected by O-H?O and N-H?O hydrogen bonding into a three-dimensional network.

| S-EPMC2968019 | biostudies-literature

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Poly[[diaqua-bis-(?(3)-isonicotinato-?N:O:O')bis-(?(2)-isonicotinato-?N:O)gadolinium(III)disiliver(I)] nitrate monohydrate].

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Poly[[?(2)-acetato-aquadi-?(3)-isonicotinato-dysprosium(III)silver(I)] perchlorate].

Project description:In the title three-dimensional heterometallic complex, {[AgDy(C(6)H(4)NO(2))(2)(C(2)H(3)O(2))(H(2)O)]ClO(4)}(n), the Dy(III) ion is eight-coordinated by four O atoms from four different isonicotinate ligands, three O atoms from two different acetate ligands and one O atom of water mol-ecule. The two-coordinate Ag(I) ion is bonded to two N atoms from two different isonicotinate anions. These metal coordination units are connected by bridging isonicotinate and acetate ligands, generating a three-dimensional network. The coordinated water mol-ecules link the carboxyl-ate group and the acetate ligand by O-H?O hydrogen bonding. The perchlorate anion is disordered over two sites with site occupancy factors 0.508?(12) and 0.492?(12) and the methyl group of the acetate ligand is disordered over two positions of equal occupancy.

| S-EPMC2972040 | biostudies-literature

Poly[[diaqua-?(3)-citrato-praseodymium(III)] monohydrate].

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| S-EPMC3152053 | biostudies-literature

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