Effect of Oxygen-Donor Charge on Adjacent Nitrogen-Donor Interactions in Eu3+ Complexes of Mixed N,O-Donor Ligands Demonstrated on a 10-Fold [Eu(TPAMEN)]3+ Chelate Complex

2021 ◽  
Vol 60 (4) ◽  
pp. 2477-2491
Author(s):  
Kathleen Schnaars ◽  
Masashi Kaneko ◽  
Kiyoshi Fujisawa
1978 ◽  
Vol 56 (15) ◽  
pp. 2039-2041 ◽  
Author(s):  
Tewfik B. Absi ◽  
Ramesh C. Makhija ◽  
Mario Onyszchuk

Five new adducts of Sn(NCS)2 have been prepared and characterized: Sn(NCS)2•2L (L = 2,6-dimethyl-y-pyrone and N,N-dimethylacetamide), Sn(NCS)2•LL (LL = 1,10-phenanthroline and 2,2′-bipyridine), and Sn(NCS)(ox) (ox = 8-hydroxyquinolinate). By comparing their infrared and Raman spectra with those of SnX2•L (X = Cl, NCS; L = triphenylphosphine oxide), SnX2•2L (X = Cl, NCS; L = dimethylsulphoxide and pyridine-N-oxide), SnCl2•LL (LL = 1,10-phenanthroline and 2,2′-bipyridine), and SnCl(ox), assignments have been made for v(CN), v(CS), and δ(NCS) vibrations; these suggest the presence of N-bonded and —NCS— bridge-bonded thiocyanate groups. Molecular weight, conductivity, and X-ray powder diffraction data support the conclusion that the adducts with the oxygen donor ligands are molecular with only N-bonded thiocyanate groups. Adducts with the bidentate nitrogen donor ligands are polymeric and have —NCS— bridging and N-bonded thiocyanate.


1975 ◽  
Vol 53 (21) ◽  
pp. 3200-3205 ◽  
Author(s):  
F. Patricia Mullins ◽  
Columba Curran

Mössbauer, infrared, and electric dipole moment data are reported for several complexes of the type (i) R2Sn(NCS)2L2 and (ii) R2SnX2B (where R = C4H9, C2H3, C6H5; X = Cl, NCS; L = monodentate ligands with O, S donor atoms; B = bidentate ligands with O, P, As donor atoms). Quadrupole splittings indicate trans C—Sn—C bonds in octahedral complexes of divinyl-and diphenyltin diisothiocyanate with bidentate oxygen-donor ligands, in contrast to a cis configuration for complexes with bidentate nitrogen-donor ligands. Data indicate that the 1:2 complex of 2,2-bipyridyl-N,N′-dioxide with Bu2Sn(NCS)2 is polymeric, with octahedral monomer units having one bridging and one terminal NCS group, a bridging bipyO2 ligand and trans butyl groups. [Ph2Sn(NCS)2]2•bipyO2 appears to be a dimer with a bridging bipyO2 ligand and five-coordinate tin atoms. Mössbauer parameters for R2SnX2L2 and R2SnX2B complexes having oxygen donors are similar.


2021 ◽  
Author(s):  
Plinio Cantero-López ◽  
Yoan Hidalgo-Rosa ◽  
Zoraida Sandoval-Olivares ◽  
Julián Santoyo-Flores ◽  
Pablo Mella ◽  
...  

Rhenium tricarbonyl complexes are one of the most important classes of coordination compounds in inorganic chemistry. Exploring their luminescent excited states, lowest singlet (S1), and the lowest triplet (T1), is...


ChemInform ◽  
2007 ◽  
Vol 38 (15) ◽  
Author(s):  
Xavier Sala ◽  
Anna M. Rodriguez ◽  
Montserrat Rodriguez ◽  
Isabel Romero ◽  
Teodor Parella ◽  
...  

2021 ◽  
Author(s):  
Sandip Munshi ◽  
Rahul Dev Jana ◽  
Tapan Kanti Paine

The ability of four mononuclear non-heme iron(IV)-oxo complexes supported by nitrogen donor polydentate ligands in degrading organic pollutants has been investigated. The water soluble iron(II) complexes upon treatment with ceric...


2017 ◽  
Vol 46 (12) ◽  
pp. 3963-3979 ◽  
Author(s):  
Karoline Rühlig ◽  
Akerke Abylaikhan ◽  
Azar Aliabadi ◽  
Vladislav Kataev ◽  
Simon Liebing ◽  
...  

New NiII formate complexes were synthesized and characterized to exhibit low decomposition temperatures to produce pure metallic nickel.


2009 ◽  
Vol 2009 (8) ◽  
pp. 1019-1026 ◽  
Author(s):  
Ahmad M. Al-Ajlouni ◽  
Alev Günyar ◽  
Ming-Dong Zhou ◽  
Paul N. W. Baxter ◽  
Fritz E. Kühn

1981 ◽  
Vol 220 (1) ◽  
pp. 103-113 ◽  
Author(s):  
R. Usón ◽  
L.A. Oro ◽  
D. Carmona ◽  
M. Esteban

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