scholarly journals Preparation of a Novel Nano-scale Lead (II) Zig-Zag Metal–Organic Coordination Polymer with Ultrasonic Assistance: Synthesis, Crystal Structure, Thermal Properties, and NBO Analysis of [Pb(μ-2-pinh)N3 H2O]n

2016 ◽  
Vol 26 (4) ◽  
pp. 819-828 ◽  
Author(s):  
Babak Mirtamizdoust ◽  
Dariusz C. Bieńko ◽  
Younes Hanifehpour ◽  
Edward R. T. Tiekink ◽  
Veysel T. Yilmaz ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Thermal Properties ◽  
Coordination Polymer ◽  
Nbo Analysis ◽  
Nano Scale ◽  
Metal Organic

Synthesis, Crystal Structure and Thermal Properties of Silver(I) Bromide Ethylenediamine Coordination Polymers

2004 ◽  
Vol 59 (9) ◽  
pp. 992-998 ◽  
Author(s):  
Christian Näther ◽  
Andreas Beck
Keyword(s):  
Crystal Structure ◽  
Thermal Properties ◽  
Coordination Polymer ◽  
Three Dimensional ◽  
Compound I ◽  
Major Phase ◽  
Dimensional Network ◽  
Pure Phase ◽  
Compound Ii ◽  
Silver Atoms

Reaction of silver(I) bromide with ethylenediamine (en) leads to the formation of the 1:1 compound poly[AgBr(μ2-en-N,N’)] (I). In the crystal structure the silver atoms of AgBr dimers are connected to two bridging bromine atoms and two nitrogen atoms of different en ligands. The dimers are thus connected by the ligands into layers via μ-N,N’ coordination. In the 2:1 coordination polymer poly[(AgBr)2(μ2-en-N,N’)] (II) a three-dimensional AgBr substructure occur which consists of helical AgBr chains that are connected via peripheral Ag-Br contacts into a three-dimensional network that contains large channels. The en ligands are situated in these channels bridging the Ag atoms. From solution this compound cannot be obtained as a pure phase, since compound I is always formed as the major phase. On heating the 1:1 compound I in a thermobalance the sample mass decreases slowly and several mass steps are observed, which are not fully resolved. If the reaction is stopped at 230°C, pure AgBr has formed. At 115°C only traces of compound II are found. The major phase consists of an as yet unidentified ligand poor compound.

An Unusual Hydrogen-Bonded Network Associated with Metal-Organic Chains: Structure and Crystal Packing of the Coordination Polymer [Cd(terephthalate)(H2O)3].4H2O

1998 ◽  
Vol 54 (5) ◽  
pp. 657-662 ◽  
Author(s):  
O. A. Michaelides ◽  
D. Tsaousis ◽  
S. Skoulika ◽  
C. P. Raptopoulou ◽  
A. Terzis
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Single Crystals ◽  
Structure Analysis ◽  
Crystal Packing ◽  
Crystal Structure Analysis ◽  
Water Molecules ◽  
Hexagonal Ice ◽  
Metal Organic ◽  
Hydrogen Bonded

Single crystals of [Cd(terephthalate)(H2O)3].4H2O (1), triaquo(1,4-benzenecarboxylato-κO)cadmium tetrahydrate, are grown in a silica gel column. Crystal structure analysis shows that (1) is a polymer with metal-organic chains stacked along the a axis forming layers parallel to the ab plane. These layers are linked by an unusual hydrogen-bonded network formed by the water molecules (both `free' and coordinated ones) and the carboxylate O atoms. This network comprises tridymite-like O8 cages which `propagate' in the direction of the a axis, mimicking the way they `propagate' along the c axis in hexagonal ice.

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