Coordination and Metalation Bifunctionality of Cu with 5,10,15,20-Tetra(4-pyridyl)porphyrin: Toward a Mixed-Valence Two-Dimensional Coordination Network

2012 ◽  
Vol 134 (14) ◽  
pp. 6401-6408 ◽  
Author(s):  
Yang Li ◽  
Jie Xiao ◽  
Tatyana E. Shubina ◽  
Min Chen ◽  
Ziliang Shi ◽  
...  
Keyword(s):  
Mixed Valence ◽  
Two Dimensional ◽  
Coordination Network

Structural and Magnetic Investigations of the Mixed-Valence FeII,III Two-Dimensional Layer Complex, [Fe2IIFe2III(HCOO)10(C6H7N)6]n

ChemPhysChem ◽  
2004 ◽  
Vol 5 (11) ◽  
pp. 1755-1761 ◽  
Author(s):  
Jacob Overgaard ◽  
Eva Rentschler ◽  
Grigore A. Timco ◽  
Finn K. Larsen
Keyword(s):  
Mixed Valence ◽  
Two Dimensional

K6[Fe8.27(HPO3)12]: a new mixed-valence iron phosphite

2014 ◽  
Vol 70 (4) ◽  
pp. 351-354 ◽  
Author(s):  
Farida Hamchaoui ◽  
Véronique Alonzo ◽  
Houria Rebbah ◽  
Eric Le Fur
Keyword(s):  
Title Compound ◽  
Mixed Valence ◽  
Bond Valence ◽  
Dimensional Structure ◽  
Two Dimensional ◽  
Space Group ◽  
Occupancy Factor ◽  
Mixed Alkali

The title compound, hexapotassium octairon(II,III) dodecaphosphonate, exhibiting a two-dimensional structure, is a new mixed alkali/3dmetal phosphite. It crystallizes in the space groupR\overline{3}m, with two crystallographically independent Fe atoms occupying sites of \overline{3}m(Fe1) and 3m(Fe2) symmetry. The Fe2 site is fully occupied, whereas the Fe1 site presents an occupancy factor of 0.757 (3). The three independent O atoms, one of which is disordered, are situated on a mirror and all other atoms are located on special positions with 3msymmetry. Layers of formula [Fe3(HPO3)4]2−are observed in the structure, formed by linear Fe3O12trimer units, which contain face-sharing FeO6octahedra interconnected by (HPO3)2−phosphite oxoanions. The partial occupancy of the Fe1 site might be described by the formation of two [Fe(HPO3)2]−layers derived from the [Fe3(HPO3)4]2−layer when the Fe1 atom is absent. Fe2+is localized at the Fe1 and Fe2 sites of the [Fe3(HPO3)4]2−sheets, whereas Fe3+is found at the Fe2 sites of the [Fe(HPO3)2]−sheets, according to bond-valence calculations. The K+cations are located in the interlayer spaces, between the [Fe3(HPO3)4]2−layers, and between the [Fe3(HPO3)4]2−and [Fe(HPO3)2]−layers.

Substituent effects of two isophthalate derivatives on the construction of cadmium coordination polymers incorporating a dipyridyl ligand

2018 ◽  
Vol 74 (8) ◽  
pp. 894-900 ◽  
Author(s):  
Lin Wang ◽  
Qian-Kun Zhou ◽  
Yun Xu ◽  
Ni-Ya Li
Keyword(s):  
Coordination Polymers ◽  
Self Assembly ◽  
Three Dimensional ◽  
Substituent Effects ◽  
Dicarboxylic Acids ◽  
Two Dimensional ◽  
Reaction Conditions ◽  
Thermal Stabilities ◽  
Coordination Network ◽  
Potential Applications

In recent years, the design and construction of crystalline coordination complexes by the assembly of metal ions with multitopic ligands have attracted considerable attention because of the unique architectures and potential applications of these compounds. Two new coordination polymers, namely poly[[μ-trans-1-(2-aminopyridin-3-yl)-2-(pyridin-4-yl)ethene-κ2 N:N′](μ3-5-methylisophthalato-κ4 O 1,O 1′:O 3:O 3′)cadmium(II)], [Cd(C9H6O4)(C12H11N3)] n or [Cd(5-Me-ip)(2-NH2-3,4-bpe)] n , (I), and poly[[μ-trans-1-(2-aminopyridin-3-yl)-2-(pyridin-4-yl)ethene-κ2 N:N′](μ2-5-hydroxyisophthalato-κ4 O 1,O 1′:O 3:O 5)cadmium(II)], [Cd(C8H4O5)(C12H11N3)] n or [Cd(5-HO-ip)(2-NH2-3,4-bpe)] n , (II), have been prepared hydrothermally by the self-assembly of Cd(NO3)2·4H2O and trans-1-(2-aminopyridin-3-yl)-2-(pyridin-4-yl)ethene (2-NH2-3,4-bpe) with two similar dicarboxylic acids, i.e. 5-methylisophthalic acid (5-Me-H2ip) and 5-hydroxyisophthalic acid (5-HO-H2ip). The coordination network of (I) is a two-dimensional sql net parallel to (101). Adjacent sql nets are further linked to form a three-dimensional supramolecular framework via hydrogen-bonding interactions. Compound (II) is a two-dimensional (3,5)-connected coordination network parallel to (010) with the point symbol (63)(55647). As the other reactants and reaction conditions are the same, the structural differences between (I) and (II) are undoubtedly determined by the different substituent groups in the 5-position of isophthalic acid. Both (I) and (II) exhibit good thermal stabilities and photoluminescence properties.

A mixed-valence complex of cobalt based on 3-methoxysalicylaldoxime

2014 ◽  
Vol 70 (4) ◽  
pp. 364-367 ◽  
Author(s):  
Tiantian Yao ◽  
Jing Lu ◽  
Dacheng Li ◽  
Jianmin Dou
Keyword(s):  
Magnetic Properties ◽  
Cobalt Complex ◽  
Mixed Valence ◽  
Ethanol Solution ◽  
Octahedral Coordination ◽  
Supramolecular Network ◽  
Two Dimensional ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Mixed Valence Complex

A new tetranuclear mixed-valence cobalt complex, namely di-μ2-azido-diazidodiethanolbis{μ2-2-[(hydroxyimino)methyl]-6-methoxyphenolato}bis{μ3-6-methoxy-2-[(oxidoimino)methyl]phenolato}dicobalt(II)dicobalt(III) ethanol disolvate, [CoII2CoIII2(C8H7NO3)2(C8H8NO3)2(N3)4(C2H5OH)2]·2C2H5OH, has been synthesized by the reaction of Co(OAc)2·4H2O (OAc is acetate) with 3-methoxysalicylaldoxime (H2mosao) in an ethanol solution. In the complex, the four Co cations all display distorted octahedral coordination environments and they are bridged by two κ2,κ1,κ1;μ3-mosao2−ligands, two κ2,κ2;μ2-Hmosao−ligands and two μ2-N3−anions to form a tetranuclear [Co4N4O4] cluster. Adjacent clusters are connected through weak C—H...N and C—H...O interactions, resulting in a two-dimensional supramolecular network parallel to theacplane. The magnetic properties of the complex have also been studied.

A Three-Component 1D/2D → 2D Interpenetrated Coordination Network: Structure and Gas Adsorption Studies

2014 ◽  
Vol 67 (10) ◽  
pp. 1391 ◽  
Author(s):  
Jin-Xiang Chen ◽  
Ni-Ni Ding ◽  
Ming Chen ◽  
Wen-Hua Chen ◽  
David J. Young ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Network Structure ◽  
Gas Adsorption ◽  
Two Dimensional ◽  
One Dimensional ◽  
Adsorption Studies ◽  
Coordination Network

We herein report a Cd-based coordination polymer containing three integrated polymeric components: two neutral and entangled two-dimensional (6,3) nets and one zwitterionic one-dimensional polymer with corner-sharing double-stranded chains propagating along the c-direction to lock the consecutive ligand struts of the (6,3) nets. Despite a sophisticated entanglement, this coordination polymer is porous to selectively adsorb CO2.

Investigating vibrational anharmonic couplings in cyanide-bridged transition metal mixed valence complexes using two-dimensional infrared spectroscopy

2014 ◽  
Vol 140 (8) ◽  
pp. 084505 ◽  
Author(s):  
Karla M. Slenkamp ◽  
Michael S. Lynch ◽  
Benjamin E. Van Kuiken ◽  
Jennifer F. Brookes ◽  
Caitlin C. Bannan ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Transition Metal ◽  
Mixed Valence ◽  
Two Dimensional ◽  
Two Dimensional Infrared Spectroscopy ◽  
Anharmonic Couplings
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