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metal-organic compounds
In the mononuclear title complex, [Ag(NO3)(3-PyOH)2] (3-PyOH = 3-hydroxypyridine, C5H5NO), the AgI atom shows a linear geometry defined by two N atoms of the 3-PyOH ligands, and the NO3− anion interacts with the AgI atom in a chelating mode through very weak Ag
O bonds. A three-dimensional supramolecular framework is formed by both hydrogen bonds and π–π interactions.
O bonds. A three-dimensional supramolecular framework is formed by both hydrogen bonds and π–π interactions.metal-organic compounds
The dinuclear title complex, [Ag2(NO3)2(3-PyOH)4]·2H2O (3-PyOH is 3-hydroxypyridine, C5H5NO), situated across a crystallographic inversion centre, can be described as a dimeric structure, in which two [Ag(3-PyOH)2] groups are held together by the AgAg interaction [3.317 (1) Å]. Each Ag atom is two-coordinate and exists in an approximately linear geometry. The two NO3− ions interact with the AgI atoms in a bridging mode through very weak AgO interactions [AgO = 2.862 (2) and 2.877 (2) Å]. A three-dimensional supramolecular framework is formed by O—HO hydrogen bonds.
Ag interaction [3.317 (1) Å]. Each Ag atom is two-coordinate and exists in an approximately linear geometry. The two NO3− ions interact with the AgI atoms in a bridging mode through very weak AgO interactions [AgO = 2.862 (2) and 2.877 (2) Å]. A three-dimensional supramolecular framework is formed by O—HO hydrogen bonds.metal-organic compounds
The asymmetric unit of the title compound, [Er(C6H3ClNO2)3(H2O)2]n, has two independent disordered 2-chloronicotinate groups, one of which lies on a twofold rotation axis. The group lying on this symmetry element chelates to the water-coordinated Er atom, which also lies on the rotation axis. Two more 2-chloronicotinate groups bridge two diaqua(2-chloronicotinato)erbium species into a linear chain. The Er atom exists in a square-antiprismatic environment made up of O atoms.
