Synthesis, Crystal Structure, Physical Properties and Theoretical Calculations of a New One-Dimensional Ni(II) Coordination Polymer Constructed by 1,10-Phenanthroline Derivative Ligand and Sulfate

2015 ◽  
Vol 25 (6) ◽  
pp. 1441-1447
Author(s):  
Zhi-Guo Kong ◽  
Wei Wang ◽  
Si-Qi Zhang ◽  
Fang-Wei Zhao ◽  
Xiu-Yan Wang
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Physical Properties ◽  
Theoretical Calculations ◽  
One Dimensional

Synthesis, IR spectrum, thermal behaviour and crystal structure of a novel one-dimensional cyano-bridged zinc(II)/nickel(II) complex

2005 ◽  
Vol 220 (1) ◽  
Author(s):  
Ahmet Karadag ◽  
Hümeyra Pasaoglu ◽  
Gökhan Kastas ◽  
Orhan Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Thermal Analysis ◽  
Coordination Polymer ◽  
Single Crystal ◽  
Ir Spectrum ◽  
Polymeric Chain ◽  
X Ray Diffraction ◽  
Bimetallic Complex ◽  
One Dimensional ◽  
X Ray

AbstractThe cyano-bridged heteronuclear coordination polymer of zinc(II)/nickel(II) has been prepared by N-(2-hydroxyethyl)-ethylendiamine (hydet-en), alternatively named 2-(2-aminoethylamino)-ethanol and characterised by IR and thermal analysis. In the bimetallic complex, the decomposition of hydet-en ligands is seen to be endothermic whereas that of the cyano ligands is found to be exothermic. The crystal structure of the complex has been determined by single-crystal X-ray diffraction. The crystal structure of the zinc(II)-nickel(II) complex consists of a one-dimensional polymeric chain –Zn(hydet-en)

scholarly journals A ladder coordination polymer based on Ca2+and (4,5-dicyano-1,2-phenylene)bis(phosphonic acid): crystal structure and solution-state NMR study

2016 ◽  
Vol 72 (9) ◽  
pp. 685-691
Author(s):  
Nutalapati Venkatramaiah ◽  
Ricardo F. Mendes ◽  
Artur M. S. Silva ◽  
João P. C. Tomé ◽  
Filipe A. Almeida Paz
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Phosphonic Acid ◽  
Cyano Group ◽  
Functional Materials ◽  
One Dimensional ◽  
Solution State ◽  
Nmr Study ◽  
Wide Range ◽  
Organic Linker

The preparation of coordination polymers (CPs) based on either transition metal centres or rare-earth cations has grown considerably in recent decades. The different coordination chemistry of these metals allied to the use of a large variety of organic linkers has led to an amazing structural diversity. Most of these compounds are based on carboxylic acids or nitrogen-containing ligands. More recently, a wide range of molecules containing phosphonic acid groups have been reported. For the particular case of Ca2+-based CPs, some interesting functional materials have been reported. A novel one-dimensional Ca2+-based coordination polymer with a new organic linker, namely poly[[diaqua[μ4-(4,5-dicyano-1,2-phenylene)bis(phosphonato)][μ3-(4,5-dicyano-1,2-phenylene)bis(phosphonato)]dicalcium(II)] tetrahydrate], {[Ca2(C8H4N2O6P2)2(H2O)2]·4H2O}n, has been prepared at ambient temperature. The crystal structure features one-dimensional ladder-like∞1[Ca2(H2cpp)2(H2O)2] polymers [H2cpp is (4,5-dicyano-1,2-phenylene)bis(phosphonate)], which are created by two distinct coordination modes of the anionic H2cpp2−cyanophosphonate organic linkers: while one molecule is only bound to Ca2+cationsviathe phosphonate groups, the other establishes an extra single connectionviaa cyano group. Ladders close pack with water molecules through an extensive network of strong and highly directional O—H...O and O—H...N hydrogen bonds; the observed donor–acceptor distances range from 2.499 (5) to 3.004 (6) Å and the interaction angles were found in the range 135–178°. One water molecule was found to be disordered over three distinct crystallographic positions. A detailed solution-state NMR study of the organic linker is also provided.

scholarly journals Droplet Size Effects on NOx Formation in a One-Dimensional Monodisperse Spray Combustion System

1982 ◽  
Author(s):  
H. Sarv ◽  
A. A. Nizami ◽  
N. P. Cernansky
Keyword(s):  
Physical Properties ◽  
Droplet Size ◽  
Size Effects ◽  
Theoretical Calculations ◽  
Spray Combustion ◽  
Nox Emissions ◽  
Combustion System ◽  
Nox Formation ◽  
One Dimensional ◽  
Aerosol Spray

A one-dimensional monodisperse aerosol spray combustion facility is described and experimental results of post flame NO/NOx emissions are presented. Four different hydrocarbon fuels were studied: isopropanol, methanol, n-heptane, and n-octane. The results indicate an optimum droplet size in the range of 48–58 microns for minimizing NO/NOx production for all of the test fuels. This NOx behavior is associated with droplet interactions and the transition from diffusive type of spray burning to that of a prevaporized and premixed case. Decreasing the droplet size results in a trend of increasing droplet interactions, which suppresses temperatures and reduces NOx. This trend continues until prevaporization effects begin to dominate and the system tends towards the premixed limit. The occurrence of the minimun NOx point at different droplet diameters for the different fuels appears to be governed by the extent of prevaporization of the fuel in the spray, and is consistent with theoretical calculations based on each fuel’s physical properties.

A Porous 4d-4f Heterometallic Coordination Polymer: Synthesis, Crystal Structure and Physical Properties

2011 ◽  
Vol 637 (11) ◽  
pp. 1555-1559 ◽  
Author(s):  
Guang-Xiang Liu ◽  
Xin-Long Li ◽  
Xiao-Chun Zha ◽  
Chun-You Zhang ◽  
Yan Wang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Physical Properties ◽  
Polymer Synthesis ◽  
Heterometallic Coordination Polymer
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