Mixed-Ligand Organometallic Polymers Containing the “Pd2(dmb)22+” Fragment:  Properties of the {Pd2(dmb)2(diphos)2+}nPolymers/Oligomers in Solution and in the Solid State

2004 ◽  
Vol 43 (17) ◽  
pp. 5321-5334 ◽  
Author(s):  
Stéphanie Sicard ◽  
Jean-François Bérubé ◽  
Dalila Samar ◽  
Abdelhalim Messaoudi ◽  
Daniel Fortin ◽  
...  
Keyword(s):  
Solid State ◽  
Mixed Ligand ◽  
Organometallic Polymers

scholarly journals The Importance of CH···X (X = O, π) Interaction of a New Mixed Ligand Cu(II) Coordination Polymer: Structure, Hirshfeld Surface and Theoretical Studies

Crystals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 455 ◽  
Author(s):  
Saikat Seth
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
Noncovalent Interactions ◽  
Carbonyl Oxygen ◽  
Hirshfeld Surface ◽  
Mixed Ligand ◽  
Binding Energies ◽  
Zigzag Chain ◽  
X Ray ◽  
Π Interactions

In this study, a new equimolar (1:1:1) mixed ligand Cu(II) polymer, [Cu(IDA)(ImP)]n (1) with iminodiacetato (IDA) and imidazo[1,2-a]-pyridine (ImP) was synthesized and characterized by single crystal X-ray diffraction analysis. X-ray crystallography reveals that compound (1) consists of polymeric zigzag chain along [010] the carboxylate carbonyl oxygen atom by two-fold symmetry screw axis. The solid-state structure is stabilized through C–H···O hydrogen bonds and C–H···π interactions that lead the molecules to generate two-dimensional supramolecular assemblies. The intricate combinations of hydrogen bonds and C–H···π interactions are fully described along with computational studies. A thorough analysis of Hirshfeld surface and fingerprint plots elegantly quantify the interactions involved within the structure. The binding energies associated with the noncovalent interactions observed in the crystal structure and the interplay between them were calculated using theoretical DFT calculations. Weak noncovalent interactions were analyzed and characterized using Bader’s theory of ‘‘atoms-in-molecules’’ (AIM). Finally, the solid-state supramolecular assembly was characterized by the “Noncovalent Interaction” (NCI) plot index.

Nickel(II) 1,1-dithiolates and related complexes. Solid-state and solution structural evidence for mixed-ligand complexes with substituted ethylenediamines

1998 ◽  
Vol 271 (1-2) ◽  
pp. 195-198 ◽  
Author(s):  
Christos C. Hadjikostas ◽  
Hussein Alkam ◽  
Pericles D. Akrivos ◽  
Eric S. Raper ◽  
James R. Creighton
Keyword(s):  
Solid State ◽  
Mixed Ligand ◽  
Mixed Ligand Complexes

Structural and Spectroscopic Studies on the Dimeric Complexes of Tris(2-methylphenyl)phosphine With Copper(I) Halides

1994 ◽  
Vol 47 (1) ◽  
pp. 25 ◽  
Author(s):  
GA Bowmaker ◽  
JV Hanna ◽  
RD Hart ◽  
PC Healy ◽  
AH White
Keyword(s):  
Solid State ◽  
Far Infrared ◽  
Spectroscopic Studies ◽  
Mixed Ligand ◽  
Acetonitrile Solution ◽  
Normal Coordinate ◽  
Dimeric Complexes ◽  
Copper Coordination ◽  
Binuclear Species ◽  
Far Infrared Spectra

1:1 adducts of the copper(I) halides, CuX (X = Cl, Br, I), with the sterically hindered ligand tris (2-methylphenyl) phospine [P(o- tol )3] have been synthesized as crystalline dihalo -bridged centrosymmetric binuclear species; six compounds have been characterized by solid-state CP-MAS n.m.r. and far-infrared spectroscopy and by room-temperature single-crystal X-ray structure determination. For X = Cl , the dimeric complex. [P(o- tol )3CuCl]2, with three-coordinate copper atoms has been obtained from acetonitrile solution. Similar dimeric complexes for X = Br and I were obtained from toluene solution, the iodide adduct incorporating cocrystallized toluene. The X = Br and I complexes crystallized from acetonitrile solution yield mixed- ligand four-coordinate copper(I) dimers, [( MeCN )P(o- tol )3CuX]2, the iodide as a 2MeCN solvate. An additional crystalline phase incorporating crystallographically independent molecules of both the three-coordinate dimer and the four-coordinate mixed- ligand dimer has also been characterized for X = Br. Solid-state 31P CP-MAS n.m.r. spectra of the complexes at B = 7.05 T show well resolved asymmetric quartets with a ∆v3/∆v1 of 1.4 for the PcuX2 complexes and 1.1-1.2 for the PcuX2N complexes; these results reflect the geometric and bonding changes in the copper coordination sphere. Far-infrared spectra of the complexes show two strong halogen-sensitive bands, with a wavenumber separation of 30-40 cm-1, which have been assigned to copper-halogen stretching modes v( CuX ), this assignment being supported by a normal coordinate analysis on the Cu2X2 core.

Solution and solid state studies of mixed ligand binuclear complexes containing one binucleating ligand

1993 ◽  
Vol 71 (8) ◽  
pp. 1253-1258 ◽  
Author(s):  
Pushpa Patel ◽  
P.K. Bhattacharya
Keyword(s):  
Solid State ◽  
Elemental Analysis ◽  
Mixed Ligand ◽  
Binuclear Complexes ◽  
Computer Programme ◽  
Magnetic Studies ◽  
Dinucleating Ligands ◽  
Coordination Sites ◽  
Stability Order ◽  
The Stability

Stability constants of homobinuclear binary Cu(II) complexes of the dinucleating ligands, having equivalent coordination sites, 5,5′-methylene-bis-salicylaldehyde (H2A1), 5,5′-methylene-bis-(3-bromosalicylaldehyde) (H2A2), and 5,5′-methylene-bis-(3-nitrosalicylaldehyde) (H2A3), and mixed ligand Cu(II) complexes with one of the above ligands and bipyridyl (L1) or 1,10-phenanthroline (L2) as second ligand, have been determined potentiometrically in water:dioxane medium (50:50 and 30:70,v/v using a computer programme. The values of [Formula: see text] and [Formula: see text] have been compared within the series of complexes having different H2A and L. Probable explanations for the stability order have been extended. The complexes (Cu2AL2)(ClO4)2 have been isolated and characterized by elemental analysis, electronic and ESR spectral, and magnetic studies.

Selective carbon dioxide adsorption by mixed-ligand porous coordination polymers

CrystEngComm ◽  
2015 ◽  
Vol 17 (44) ◽  
pp. 8388-8413 ◽  
Author(s):  
Biswajit Bhattacharya ◽  
Debajyoti Ghoshal
Keyword(s):  
Carbon Dioxide ◽  
Solid State ◽  
Coordination Polymers ◽  
Metal Organic Frameworks ◽  
Mixed Ligand ◽  
Carbon Dioxide Adsorption ◽  
Porous Coordination Polymers ◽  
Metal Organic ◽  
Proper Design

Mixed ligand metal–organic frameworks (MOFs) have resolutely established themselves as a class of excellent solid state sorbents for carbon dioxide (CO2) and a proper design of such MOF can potentially improve not only the amount of CO2 adsorption, but also the selectivity of CO2 uptake over other gases and volatiles.

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