Fluorosulfates of palladium. Part 2. The hexakis(fluorosulfato)palladate (IV)ion and palladium(II) hexakis(fluorosulfato)metallates(IV)

1979 ◽  
Vol 57 (15) ◽  
pp. 2058-2064 ◽  
Author(s):  
Keith C. Lee ◽  
Friedhelm Aubke
Keyword(s):  
Vibrational Spectra ◽  
Ground State ◽  
Ligand Field ◽  
Octahedral Environment ◽  
Ligand Field Parameters

The synthesis of a number of compounds containing the hexakis(fluorosulfato)palladate(IV) anion and the cations Cs+, Ba2+,NO+, and ClO2+ is reported. All compounds are diamagnetic. Also reported is the synthesis of Pd[M(SO3F)6], where M = Pt(IV) and Sn(IV). Here, palladium(II) is found in a regular octahedral environment. Both compounds are paramagnetic, consistent with a 3A2g ground state. Curie–Weiss law behavior is found and ligand field parameters for the Pd(II) derivatives are reported. Vibrational spectra are reported for all new fluorosulfato complexes.

Fluorosulfates of palladium

1977 ◽  
Vol 55 (13) ◽  
pp. 2473-2477 ◽  
Author(s):  
K. C. Lee ◽  
F. Aubke
Keyword(s):  
Ground State ◽  
Diffuse Reflectance ◽  
Magnetic Measurements ◽  
Structural Information ◽  
Tridentate Ligand ◽  
Ligand Field ◽  
Polymeric Structure ◽  
Octahedral Environment ◽  
Fluorosulfate Group ◽  
Ligand Field Parameter

The syntheses of Pd(SO3F)2 and Pd(SO3F)3 by the reactions of palladium with BrOSO2F and S2O6F2 are described. Structural information on both compounds is based on infrared, Raman, diffuse reflectance, and electronic mull spectra as well as magnetic measurements from ∼300 to ∼100 K. Palladium bisfluorosulfate is found to have a polymeric structure with the fluorosulfate group acting as a tridentate ligand. As a consequence, an octahedral environment is found for Pd2+ with a 3A2g ground state, a µeff298 value of 3.39 BM and the ligand field parameter Dq = 1177 cm−1 and B = 633 cm−1. Pd(SO3F)3 is best regarded as PdII[PdIV(SO3F)6].

scholarly journals Ligand field parameters and the ground state of Fe(II) phthalocyanine

2013 ◽  
Vol 138 (24) ◽  
pp. 244308 ◽  
Author(s):  
M. D. Kuz'min ◽  
A. Savoyant ◽  
R. Hayn
Keyword(s):  
Ground State ◽  
Ligand Field ◽  
Ligand Field Parameters

The Coordination Chemistry of Phosphoryl Compounds Containing the — N(CH3)2 Group, Part VIII

1972 ◽  
Vol 27 (7) ◽  
pp. 759-763 ◽  
Author(s):  
M. W. G. De Bolster ◽  
W. L. Groeneveld
Keyword(s):  
Coordination Chemistry ◽  
General Formula ◽  
Ligand Field ◽  
Chemical Analyses ◽  
X Ray ◽  
Physical Measurements ◽  
Ligand Field Spectra ◽  
Chloride Adduct ◽  
Ligand Field Parameters ◽  
Group Part

A number of new solvates and adducts containing bisphenyldimethylaminophosphine oxide is reported. The solvates have the general formula M[(C6H5)2P(O)N(CH3)2]42+(anion-)2, in which M = Mg, Ca, Mn, Fe, Co, Ni, Cu, Zn and Cd, and the anions are ClO4- and BF4-. The adducts have the general formula M[(C6H5)2P(O)N(CH3)2]2Cl2, where M stands for the same series of metals.The compounds are characterized and identified by chemical analyses and physical measurements.Ligand-field and vibrational spectra have been investigated; values for the ligand-field parameters are reported. It is concluded that coordination takes place via the oxygen atom of the ligand.X-ray powder patterns were used in combination with ligand-field spectra to deduce the coordination around the metal ions.The interesting behaviour of the nickel (II) chloride adduct upon heating is discussed and it is shown that both a square pyramidal and a tetrahedral modification exists.

Ligand Field Parameters

1976 ◽  
Vol 15 (3-4) ◽  
pp. 189-199 ◽  
Author(s):  
Ivano Bertini ◽  
Dante Gatteschi ◽  
Andrea Scozzafava
Keyword(s):  
Ligand Field ◽  
Ligand Field Parameters

Über die Natur der Cu2+-Zentren im NH4Cl - die spektroskopische Untersuchung von Cu2+-dotiertem Hg(NH3)2Cl2/The Nature of the Cu2+ Centres in NH4Cl - a Spectroscopic Investigation of Cu2+ Doped Hg(NH3)2Cl2

1992 ◽  
Vol 47 (4) ◽  
pp. 465-469 ◽  
Author(s):  
G. Steffen ◽  
U. Kaschuba ◽  
M. A. Hitchman ◽  
D. Reinen
Keyword(s):  
Ground State ◽  
Spectroscopic Investigation ◽  
Reflectance Spectra ◽  
Ligand Field ◽  
Field Reflectance

The preparation of Hg(NH3)2Cl2 doped with a small amount of Cu2+ is reported. The EPR and ligand field reflectance spectra indicate the presence of “CuCl4(NH3)2” polyhedra with a compressed tetragonal geometry and confirm, that the centres in Cu2+ doped NH4Cl possess the same geometry - as postulated earlier. The Cu2+ centres in Hg(NH3)2Cl2 are less compressed than those in NH4Cl, however, as could be deduced from the copper(II) hyperfine values, which are strongly influenced by the quite different admixture of the metal 4s orbital into the Alg (dz2) ground state in the two cases, and from the comparable energies of the d - d transitions.

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