Metallacyclophane
Web2 feb. 2004 · Xavier Ottenwaelder Dr. Laboratoire de Chimie Inorganique, CNRS UMR 8613, Université Paris-Sud, 91405 Orsay, France, Fax: (+33) 169-154-754 WebFirst organic radicals, now metal complexes: A successful extension to metal complexes of a well-known organic radical approach to ferromagnetism is exemplified by the triplet ground-state molecule containing two Cu(II) centers connected by a double m-phenylenediamide skeleton of the cyclophane type …
Metallacyclophane
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Web1 jul. 2024 · The metallacyclophanes were synthesized by the reaction of ester functionalized ligands, phenyl-1,4-bisisonicotinate (pbin) and bis (4- (4 … Web3 nov. 2015 · Functionalized nanotubes are promising candidates to promote communication between paramagnetic centres at large distances through their highly delocalized π systems. Here, Density Functional Theory methods are employed to study the exchange coupling interaction between FeIII paramagnetic centres coordinated at …
Web1 mrt. 2008 · Complex 2 consists of 2D brick-wall-like layers assembled from dinuclear metallacyclophane [Cu2(mpba)2]4– anions and copper(II) cations. Web1 jan. 2003 · A chiral metallacyclophane for asymmetric catalysis. Jiang H, Hu A, Lin W. Author information. Affiliations. All authors. 1. Department of Chemistry, CB#3290, University of North Carolina, Chapel Hill, NC 27599, USA. ORCIDs linked to …
Web2 dec. 2015 · Compound 1 crystallizes in the monoclinic space group P 2 1 /c as a solvated neutral metallacyclophane with the formula content [(VO) 4 (H 2 L1) 4 (py) 4]·6py (1·6py). The asymmetric unit is formed by one half of this formula, whereas the unit cell is composed of two full molecules. WebSelf-assembly of binuclear copper(II) metallacyclophane complexes with two m-phenylene-substituted dioxamates as bridging ligands and coordinatively unsaturated mononuclear copper(II) or nickel ...
Web1 mrt. 2008 · Two new oxamato‐bridged copper(II) complexes of formula Na10[{Cu2(mpba)2}2(μ1,1‐N3)2]·18H2O (1) and [{Cu2(mpba)2}Cu2(H2O)8]·6H2O (2) [mpba = 1,3‐phenylenebis(oxamato‐N,N′)] have been synthesized and characterized. X‐ray crystallographic studies of complex 1 reveal a metallamacrocycle structure in which two …
WebSelf-assembly of the rigid rodlike ligand N,N′-4,4′-diphenylethynebis(oxamate) (dpeba) and Cu2+ ions affords a novel dinuclear copper(II) metallacyclophane (nBu4N)4[Cu2(dpeba)2]·4MeOH·2Et2O (1) featuring a very long intermetallic distance (r = 15.0 Å). Magnetic susceptibility measurements for 1 reveal a moderately weak but … david montgomery philliesWeb13 jan. 2004 · Magnet brickwork: A two‐dimensional molecule‐based metamagnet is obtained by the reaction of CoII ions and the tetra‐bidentate {Cu2(mpba)2}4− moiety. The CoII ions act as cement between {Cu2(mpba)2} units to form a brick‐wall assembly (see picture). The strong CoII anisotropy and weak interplanar interactions lead to a … david montgomery or joe mixonWeb3 mrt. 2008 · These metallamacrocycle units are self-assembled through sodium cations and water molecules, affording an intricate 3D network. Complex 2 consists of 2D brick-wall … gas stations in boca raton flWeb3 mrt. 2008 · Two new oxamato-bridged copper(II) complexes of formula Na 10 [{Cu 2 (mpba) 2} 2 (μ 1,1-N 3) 2]·18H 2 O (1) and [{Cu 2 (mpba) 2}Cu 2 (H 2 O) 8]·6H 2 O (2) [mpba = 1,3-phenylenebis(oxamato-N,N′)] have been synthesized and characterized.X-ray crystallographic studies of complex 1 reveal a metallamacrocycle structure in which two … gas stations in boardman ohioWebMagnet brickwork: A two‐dimensional molecule‐based metamagnet is obtained by the reaction of CoII ions and the tetra‐bidentate {Cu2(mpba)2}4− moiety. The CoII ions act … david montgomery rasWebTwo distinct one-dimensional (1) and two-dimensional (2) mixed-metal–organic polymers have been synthesized by using the “complex-as-ligand” strategy. The structure of 1 consists of isolated ladderlike MnII2CuII2 chains separated from each other by neutral MnII2 dimers, whereas 2 possesses an overall corrugated layer structure built from additional … david montgomery or khalil herbertWeb25 aug. 2024 · The magnetic coupling within the dicopper(II) [3,3] metallacyclophane fragment in 2 (J = +8.22 cm −1) is of identical nature with that in 1 (J = +7.14 cm −1), although it is somewhat smaller. The same spin polarization mechanism involved in 1 occurs in 2 , but the different values of J found for them can be understood by a comparison of … gas stations in bismarck