Solid-state organometallic chemistry of tripodal (polyphosphine)metal complexes. Carbon-hydrogen activation reactions at cobalt(I) encapsulated into the tetraphosphine P(CH2CH2PPh2)3

1991 ◽  
Vol 10 (10) ◽  
pp. 3415-3417 ◽  
Author(s):  
Claudio. Bianchini ◽  
Maurizio. Peruzzini ◽  
Fabrizio. Zanobini
1988 ◽  
Vol 7 (9) ◽  
pp. 2078-2079 ◽  
Author(s):  
A. R. Siedle ◽  
R. A. Newmark ◽  
K. A. Brown-Wensley ◽  
R. P. Skarjune ◽  
L. C. Haddad ◽  
...  

Chemistry ◽  
2021 ◽  
Vol 3 (1) ◽  
pp. 199-227
Author(s):  
Young Hoon Lee ◽  
Jee Young Kim ◽  
Sotaro Kusumoto ◽  
Hitomi Ohmagari ◽  
Miki Hasegawa ◽  
...  

Analysis of the weak interactions within the crystal structures of 33 complexes of various 4′-aromatic derivatives of 2,2′:6′,2″-terpyridine (tpy) shows that interactions that exceed dispersion are dominated, as expected, by cation⋯anion contacts but are associated with both ligand–ligand and ligand–solvent contacts, sometimes multicentred, in generally complicated arrays, probably largely determined by dispersion interactions between stacked aromatic units. With V(V) as the coordinating cation, there is evidence that the polarisation of the ligand results in an interaction exceeding dispersion at a carbon bound to nitrogen with oxygen or fluorine, an interaction unseen in the structures of M(II) (M = Fe, Co, Ni, Cu, Zn, Ru and Cd) complexes, except when 1,2,3-trimethoxyphenyl substituents are present in the 4′-tpy.


2004 ◽  
Vol 1 (1) ◽  
pp. 110-115
Author(s):  
Baghdad Science Journal

We found that 4,5- diphenyl- 3(2- propynyl) thio- 1??-triazole [1? forms a complex with Pd (11) ion of ratio 1:1 which absorbs light in CH2CI2 at 400 nm, and 4,5- diphenyl- 3(2- propenyl) thio- 1,2,4- triazole [II] forms complexes with Pd (II) ion of ratio 1:1 which absorbs light at 390 nm, and of ratio 2:1 which absorbs light at 435 nm. On the other hand, we found that the new derivative 4- phenyl- 5( p- amino phenyl) -3- mercapto- 1,2,4- triazole ?111? forms complexes with Cu (II) ion of the ratio 1:1 which absorbs light at 380 nm, with Ni (II) ion of the ratio 3:1 which absorbs light at 358 nm; and with Co (11) ion of the ratio 3.2:1 which absorbs light at 588 nm. The ratio of the complexes were determined by measuring the electronic spectra of the complexes in CH2G2 and (CH^NCHO at different concentrations ofthe ligands and f?xed ' •' of the metal ion in every case, then applying the molar ratio plots on the data. Our results were confirmed by precipitating most ofthe above complexes in solid state, and then each complex was analyzed elementally.


2022 ◽  
Author(s):  
Emmanuel Blas Patricio-Rangel ◽  
Verónica Salazar ◽  
Omar Cortezano-Arellano ◽  
Daniel Mendoza-Espinosa

The chemistry of multinuclear metal complexes bearing by N-heterocyclic carbene (NHC) ligands, is an area of fast growing interest in modern organometallic chemistry. In particular, complexes supported by mesoionic (MIC)...


Polyhedron ◽  
2020 ◽  
Vol 182 ◽  
pp. 114511
Author(s):  
Andrea Dobri ◽  
Alexandru Covaci ◽  
Ancuța Covaci ◽  
Anca Silvestru

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