The architecture of dinuclear Ni and Cu complexes: twisted and parallel forms controlled by the self-assembly of Schiff base ligands

2003 ◽  
Vol 27 (5) ◽  
pp. 886-889 ◽  
Author(s):  
Hirohiko Houjou ◽  
Atsushi Iwasaki ◽  
Tamako Ogihara ◽  
Masatoshi Kanesato ◽  
Sadatoshi Akabori ◽  
...  
Keyword(s):  
Schiff Base ◽  
Self Assembly ◽  
The Self ◽  
Schiff Base Ligands ◽  
Parallel Forms ◽  
Cu Complexes

scholarly journals Self-Assembly of Antiferromagnetically-Coupled Copper(II) Supramolecular Architectures with Diverse Structural Complexities

Molecules ◽  
2020 ◽  
Vol 25 (23) ◽  
pp. 5549 ◽  
Author(s):  
Santokh S. Tandon ◽  
Scott D. Bunge ◽  
Neil Patel ◽  
Esther C. Wang ◽  
Laurence K. Thompson
Keyword(s):  
Schiff Base ◽  
Self Assembly ◽  
Three Dimensional ◽  
The Self ◽  
Basic Building Block ◽  
Schiff Base Ligands ◽  
X Ray ◽  
Supramolecular Architectures ◽  
Hydroxy Groups ◽  
New Discovery

The self-assembly of 2,6-diformyl-4-methylphenol (DFMP) and 1-amino-2-propanol (AP)/2-amino-1,3-propanediol (APD) in the presence of copper(II) ions results in the formation of six new supramolecular architectures containing two versatile double Schiff base ligands (H3L and H5L1) with one-, two-, or three-dimensional structures involving diverse nuclearities: tetranuclear [Cu4(HL2−)2(N3)4]·4CH3OH·56H2O (1) and [Cu4(L3−)2(OH)2(H2O)2] (2), dinuclear [Cu2(H3L12−)(N3)(H2O)(NO3)] (3), polynuclear {[Cu2(H3L12−)(H2O)(BF4)(N3)]·H2O}n (4), heptanuclear [Cu7(H3L12−)2(O)2(C6H5CO2)6]·6CH3OH·44H2O (5), and decanuclear [Cu10(H3L12−)4(O)2(OH)2(C6H5CO2)4] (C6H5CO2)2·20H2O (6). X-ray studies have revealed that the basic building block in 1, 3, and 4 is comprised of two copper centers bridged through one μ-phenolate oxygen atom from HL2− or H3L12−, and one μ-1,1-azido (N3−) ion and in 2, 5, and 6 by μ-phenoxide oxygen of L3− or H3L12− and μ-O2− or μ3-O2− ions. H-bonding involving coordinated/uncoordinated hydroxy groups of the ligands generates fascinating supramolecular architectures with 1D-single chains (1 and 6), 2D-sheets (3), and 3D-structures (4). In 5, benzoate ions display four different coordination modes, which, in our opinion, is unprecedented and constitutes a new discovery. In 1, 3, and 5, Cu(II) ions in [Cu2] units are antiferromagnetically coupled, with J ranging from −177 to −278 cm−1.

Steric-Hindrance Effect of a Substituent in the Self-Assembly Process of Copper(II) Complexes with Quadridentate Schiff-Base Ligands Involving a 2-Substituted-Imidazole Moiety

1997 ◽  
Vol 70 (10) ◽  
pp. 2461-2472 ◽  
Author(s):  
Naohide Matsumoto ◽  
Masaaki Mimura ◽  
Yukinari Sunatsuki ◽  
Shingo Eguchi ◽  
Yukiko Mizuguchi ◽  
...  
Keyword(s):  
Schiff Base ◽  
Steric Hindrance ◽  
Self Assembly ◽  
The Self ◽  
Assembly Process ◽  
Schiff Base Ligands

Self-assembly of NIR luminescent 30-metal drum-like and 12-metal rectangular d–f nanoclusters with long-chain Schiff base ligands

2014 ◽  
Vol 50 (98) ◽  
pp. 15569-15572 ◽  
Author(s):  
Xiaoping Yang ◽  
Zongping Li ◽  
Shiqing Wang ◽  
Shaoming Huang ◽  
Desmond Schipper ◽  
...  
Keyword(s):  
Schiff Base ◽  
Self Assembly ◽  
Schiff Base Ligands ◽  
Long Chain

Two classes of NIR luminescent heterobimetallic d–f nanoclusters [Ln6Cd24(L1)11(OAc)43(OH)] and [Ln4Zn8(L2)2(OAc)20(OH)4] (Ln = Nd and Yb) were prepared using flexible long-chain Schiff base ligands which have (CH2)6 backbones.

Influence of the central metal ion in controlling the self-assembly and magnetic properties of 2D coordination polymers derived from [(NiL)2M]2+ nodes (M = Ni, Zn and Cd) (H2L = salen-type di-Schiff base) and dicyanamide spacers

2015 ◽  
Vol 44 (3) ◽  
pp. 1292-1302 ◽  
Author(s):  
Lakshmi Kanta Das ◽  
Carlos J. Gómez-García ◽  
Ashutosh Ghosh
Keyword(s):  
Magnetic Properties ◽  
Schiff Base ◽  
Coordination Polymers ◽  
Self Assembly ◽  
Significant Variation ◽  
Metal Ion ◽  
The Self ◽  
Central Metal

Three new 2D coordination polymers of different networks with significant variation in magnetic properties have been synthesized by changing the central metal in the trinuclear nodes.

Octadentate flexible ligands as a platform for a variety of homo and heterometallic complexes containing diphenoxido and phenoxido/azido bridging groups: synthesis, structure and magnetic properties

2018 ◽  
Vol 42 (8) ◽  
pp. 6332-6342 ◽  
Author(s):  
Koushik Pramanik ◽  
Pijush Malpaharia ◽  
Enrique Colacio ◽  
Babulal Das ◽  
Swapan K. Chandra
Keyword(s):  
Magnetic Properties ◽  
Schiff Base ◽  
Transition Metal ◽  
Transition Metal Ions ◽  
Heterometallic Complexes ◽  
Schiff Base Ligands ◽  
Ancillary Ligands ◽  
Bridging Groups ◽  
Flexible Ligands ◽  
Cu Complexes

Homometallic (M2 and M4) and heterometallic (Ni4Cu) complexes were assembled from octadentate Schiff-base ligands, transition metal ions and ancillary ligands.

Unsymmetrical exo-dentate IN− ligand for further self-assembly with the Zn–Nd Salen-type Schiff-base ligands

2009 ◽  
Vol 12 (3) ◽  
pp. 267-271 ◽  
Author(s):  
Wei-Yu Bi ◽  
Xing-Qiang Lü ◽  
Wen-Li Chai ◽  
Tao Wei ◽  
Ji-Rong Song ◽  
...  
Keyword(s):  
Schiff Base ◽  
Self Assembly ◽  
Schiff Base Ligands

The self-assembly switching of the group 13 tetrahedral Schiff base complexes by changing the character of coordination centre

2004 ◽  
Vol 28 (11) ◽  
pp. 1320-1325 ◽  
Author(s):  
Janusz Lewiński ◽  
Janusz Zachara ◽  
Patryk Stolarzewicz ◽  
Maciej Dranka ◽  
Edyta Kołodziejczyk ◽  
...  
Keyword(s):  
Schiff Base ◽  
Self Assembly ◽  
The Self ◽  
Schiff Base Complexes ◽  
Group 13
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