Tetrakis(1,10-phenanthroline)bis(μ-pyridine-2,6-dicarboxylato)(pyridine-2,6-dicarboxylato)dicopper(II)terbium(III) nitrate tetrahydrate

Content Provider	Semantic Scholar
Author	Zhang, Wei
Copyright Year	2012
Abstract	The asymmetric unit of the title compound, [Cu(2)Tb(C(7)H(3)NO(4))(3)(C(12)H(8)N(2))(4)]NO(3)·4H(2)O, consists of one-half of the C(2)-symmetric trinuclear coordination cation, one-half of the C(2)-symmetric nitrate anion and two water mol-ecules. In the coordination cation, the Cu(II) atom is coordinated by four N atoms from two 1,10-phenanthroline ligands and two O atoms from a bridging-chelating carboxyl-ate group of the pyridine-2,6-dicarboxyl-ate anion, completing a distorted N(4)O(2) octa-hedral coordination environment. The Tb(III) atom, located on a twofold rotation axis, is nine-coordinated by three tridentate pyridine-2,6-dicarboxyl-ate anions forming an N(3)O(6) donor set. The intra-molecular Cu⋯Tb distance of 5.0592 (11) Å indicates weak inter-actions between the Cu(II) and Tb(III) atoms. The coordination cations, nitrate anions and water mol-ecules are connected via O-H⋯O hydrogen bonds into layers parallel to the (001) plane. Moreover, there are extensive π-π stacking inter-actions [centroid-centroid distances = 4.332 (7) and 3.878 (5) Å] between the phenanthroline ligands and between phenanthroline and pyridine-2,6-dicarboxyl-ate ligands.
Starting Page	m1084
Ending Page	m1085
Page Count	2
File Format	PDF HTM / HTML
DOI	10.1107/S1600536812031686
PubMed reference number	22904747
Journal	Medline
Volume Number	68
Alternate Webpage(s)	http://journals.iucr.org/e/issues/2012/08/00/gk2483/gk2483.pdf
Alternate Webpage(s)	https://doi.org/10.1107/S1600536812031686
Journal	Acta crystallographica. Section E, Structure reports online
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article