Preparation, characterization, and spectral studies of neutral tri-tert-butylphosphine complexes of zinc(II) and cadmium(II)

Goel, Ram G.; Ogini, William O.

doi:10.1021/ic50174a028

Cited by 32 publications

(22 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In continuation of our investigations on metal complexes of sterically hindered phosphines we have undertaken a systematic study of phosphine complexes of mercury(I1) (7,8,14) and other d l 0 metals (15,16). In the present work complexes of mercury(I1) cyanide with tri-teut-butyl-, tricyclohexyl-, tri-o-tolyl-, and tri-p-tolylphosphines were investigated.…”

Section: Introductionmentioning

confidence: 99%

Mercury(II) cyanide complexes of bulky phosphines. Preparation, characterization, and spectral studies

Goel¹,

Henry²,

Ogini³

1979

Can. J. Chem.

Self Cite

View full text Add to dashboard Cite

RAM G. GOEL, WILLIAM P. HENRY, and WILLIAM 0. OGINI. Can. J. Chem. 57, 762 (1979). Mercury(I1) cyanide forms 1 :2 complexes with triphenylphosphine and tri-p-tolylphosphine. Both 1 : 1 and 1 :2 complexes are formed with tricyclohexylphosphine but only the 1 : 1 complex is obtained with tri-tert-butylphosphine, and no complex is formed with tri-o-tolylphosphine. The complexes have been characterized by elemental analyses and by infrared and Raman spectral measurements. Their behaviour in solution has been investigated by conductance, molecular weight, and 31P nmr measurements. The infrared and Raman data for the 1 : 2 complexes are in accord with a pseudotetrahedral structure of C2, skeletal symmetry. At least one of the 1 : 1 complexes is indicated to have a dimeric structure involving terminal and bridging CN ligands. The C=N, Hg-CN, and Hg-P stretching frequencies and the 31P-199Hg spinspin coupling for the complexes are discussed.RAM G. GOEL, WILLIAM P. HENRY et WILLIAM 0. OGINI. Can. J. Chem. 57, 762 (1979). Le cyanure de mercure(I1) forme des complexes 1 : 2 avec la triphknylphosphine et la tri-ptolylphosphine. I1 se forme des complexes 1 : 1 ainsi que 1 : 2 avec la tricyclohexylphosphine alors que l'on n'obtient que des complexes 1 : 1 avec la tri-tert-butylphosphine; il ne se forme aucun complexe avec la tri-o-tolylphosphine. On a caractkrist les complexes grgces a leurs analyses centksimales et a leurs spectres infrarouges et Raman. On a ktudik leur comportement en solution par des mesures de conductivitk, de leurs poids moleculaires et de leurs spectres rmn 31P. Les donntes infrarouge et Raman concernant les complexes 1 : 2 sont en accord avec une structure pseudotttrakdrique de symktrie de squelette Cz,. I1 semble qu'au moins un des complexes comporte une structure dimkre impliquant des ligands CN terminaux servant de ponts. On discute des frkquences de vibration C=N, Hg-CN et Hg-P ainsi que des couplages spin-spin 31P-199Hg des complexes.[Traduit par le journal] IntroductionResults and Discussion Mercury(I1) halides are known to form a variety of complexes(1) with tertiary phosphines (1) and a number of spectroscopic (2-10) as well as crystallographic studies (11, 12) on these complexes have been reported recently. An investigation on triphenylphosphine complexes of mercury(I1) pseudohalides showed that, unlike mercury(I1) halides, mercury(11) cyanide forms only a 1 :2 complex (13). In another study ( 9 , both 1 : 1 and 1 : 2 complexes of mercury(I1) cyanide were obtained with trimethylphosphine. Apart from these studies no report has appeared on phosphine complexes of mercury(I1) cyanide.In continuation of our investigations on metal complexes of sterically hindered phosphines we have undertaken a systematic study of phosphine complexes of mercury(I1) (7,8,14) and other d l 0 metals (15, 16). In the present work complexes of mercury(I1) cyanide with tri-teut-butyl-, tricyclohexyl-, tri-o-tolyl-, and tri-p-tolylphosphines were investigated. In view of very limited information reported for the tripheny...

show abstract

Section: Introductionmentioning

confidence: 99%

Mercury(II) cyanide complexes of bulky phosphines. Preparation, characterization, and spectral studies

Goel¹,

Henry²,

Ogini³

1979

Can. J. Chem.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In order to evaluate the role of steric effects in metal complexes of tertiary phosphines we have undertaken a study of metal complexes of tertiary phosphines containing bulky substituents (13, [15][16][17]. Recent studies (15b, 18) have clearly shown that the steric requirements of the substituents on phosphorus have a marked effect on the stereochemistry and the chemical reactivity of metal complexes of phosphorus ligands.…”

Section: Introductionmentioning

confidence: 99%

Mercury(II) complexes of tris(tert-butyl)phosphine and tri(o-tolyl)phosphine

Alyea¹,

Dias²,

Goel³

et al. 1977

Can. J. Chem.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Furthermore, the (ClCdO) bending mode is observed at 146 cm -1 with the weak intensity in microRaman spectrum of the mentioned complex and its calculated values was found as 110.36 and 146.14 cm -1 at the B3LYP/ LanL2DZ and M06-L/LanL2DZ levels, respectively. Likewise, the observed micro-Raman ν(Cd-P) stretching bands can be assigned to the weak band at 342 cm -1 and the peak at 256 cm -1 with very weak intensity [34] and the calculated values for these bands were found as 318.10 and 333.73 cm -1 and 245.77and 251.87 cm -1 as seen in Figure 6(a) and Table S3. By considering the observed results for the vibrational bands including Cd metal atom, a comparison between the calculated values using two different methods exhibits that the M06-L calculation method of the density functional theory gives better results than B3LYP method for the vibrational modes related to the Cd atom.…”

Section: Canadian Chemical Transactionsmentioning

confidence: 66%

Analysis of Molecular Structures, Spectroscopic Properties (FT-IR, Micro-Raman and UV-vis.) and Quantum Chemical Calculations of Free and Ligand Dimethyl Phenylphosphonite in Cd(II) Halide Complex

2014

Can Chem Trans

View full text Add to dashboard Cite

Abstract:In this study the molecular geometries, experimental vibrational and electronic absorption spectra and quantum chemical calculations of free dimethyl phenylphosphonite, (C8H11PO2), (with synonym, dimethoxyphenylphosphine or phenyldimethoxyphosphine) (Abbreviated as DMPP) and its [Cd(DMPP)].Cl2.H2O metal halide complex have been investigated by using elemental analysis, FT-IR, micro-Raman and UV-vis spectroscopies. The conformational analysis of free DMPP, the structures, vibrational wavenumbers and HOMO-LUMO and MEP analyses of the mentioned compounds have been computed by using DFT/B3LYP calculation method with 6-311++G(d,p) basis set for free DMMP molecule and DFT/B3LYP and DFT/M06-L methods with LanL2DZ basis set for [Cd(DMPP)].Cl2.H2O metal halide complex, in the ground state. The comparison of the observed fundamental vibrational frequencies with calculated results indicates that DFT/M06-L method is superior to the scaled DFT/B3LYP approach for the vibrational modes related to the metal atom of [Cd(DMPP)].Cl2.H2O metal halide complex.

show abstract

Preparation, characterization, and spectral studies of neutral tri-tert-butylphosphine complexes of zinc(II) and cadmium(II)

Cited by 32 publications

References 46 publications

Mercury(II) cyanide complexes of bulky phosphines. Preparation, characterization, and spectral studies

Mercury(II) cyanide complexes of bulky phosphines. Preparation, characterization, and spectral studies

Mercury(II) complexes of tris(tert-butyl)phosphine and tri(o-tolyl)phosphine

Analysis of Molecular Structures, Spectroscopic Properties (FT-IR, Micro-Raman and UV-vis.) and Quantum Chemical Calculations of Free and Ligand Dimethyl Phenylphosphonite in Cd(II) Halide Complex

Contact Info

Product

Resources

About