Triazole complexes structure

IR spectra, 22 177-179 Raman spectra, 22 178, 179 triazole and triazolate complexes, 32 180 trifluoride, structure, 27 90, 91, 92, 95, 97 trifluorophosphine complexes cyclopentadienyl, 29 103 hexakis anion, 29 53-54 [Ni4(0CH3)4(acac)4(CH3OH4)l, 43 323 Nitramide, reaction mechanisms, 22 138, 139 acid catalysis, 22 139... 

Kuroiwa K, Shibata T, Takada A, Nemoto N, Kimizuka N. Heat-set gel-like networks of lipophilic Co(II) triazole complexes in organic media and their thermochromic structural transitions. J Am Chem Soc 2004 126 2016-2021. 

Hartree-Fock calculations with the 3-21G and 6-31G basis sets have been performed to study the structure and energetics of Na+, K+ and Al+ -azole complexes. Structures have been fully optimized at the 3-21G level. Calculated X+ (X = H, Li, Na, K, Al) binding energies of 1,2,3-triazole show that cation association energies follow the sequence Li+ > Al+ > Na+ > K+, and all of them are much smaller than the corresponding protonation energies (92JPC3022). 

T) -CsH Pr4) with [W(CO) 5 (thf) ] leads a tetracarbonyl tungsten complex [W(CO)4P2Nl2Cp 2] which can be oxidised with MesSlOOSlHes to give the first example of a complex containing a M3-PO ligand, (Cp Ni-W(CO)4-NiCp (ps-PO)2] The synthesis and molecular structure of a 1,2,4-triazole complex [W(co)sL]... 

The perfluoro-1,2,4-triazoles are known to be effective ligands. For instance, a number of charge neutral Os(II) pyridyl-l,2,4-triazolate complexes with either bis(diphenylphosphino)methane 93 or ct>l,2-bis(diphenylphosphino)ethene 94 chelates were synthesized, and their structural, electrochemical, photophysical properties and thermodynamic relationships were established [89, 90], Chi, Carty et al. synthesized 6-(3-trifluoromethyl-l,2,4-triazolyl)-2,2 -bipyridine and built up on this basis tridentate 6-azolyl-2,2 -bipyridine chelate complex compounds of Ga and In 95 [91],... 

Fig. 10 The synthesis of heteroleptic copper amido-l,2,3-triazole complexes (54a-f) and the X-ray structure of the heteroleptic copper(I) amido-1,2,3-triazole complex, 54f [169]. Hydrogen atoms and counter ions have been omitted for clarity...

In related work, Elsevier and coworkers have synthesized a family of hybrid palladium NHC-triazole complexes (81, Scheme 12) [175]. Anion exchange to the triflate enabled the X-ray crystal structure of 81 (R — Mes, = Ad) to be determined, and as expected, the NHC-triazole ligand is coordinated to the Pd(II) ion in a bidentate fashion through the N3 nitrogen of the triazole unit and the C2... 

Triazole and pyrazole are excellent chelating ligands to form six-coordinate iron complexes with a chain structure. An iron(II)-triazole complex was first reported to exhibit a spin transition above room temperature by Haasnoot et al Kahn and co-authors prepared also several polymeric compounds in which Fe " ions were bridged by the 4-R-1,2,4-triazole system ... 

Fig. 15 Lipophilic triazole complexes. Schematic illustrations for a Fe(II)(22)3Cl2 and b thermochromic heat-set gelation observed for Co(Il)(22)3Cl2 in chloroform [76]. c Schematic illustration of coordination structural changes induced by guest binding on the surface of Co(II)(22)3Cl2 [77]...

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