Vibrational Spectra of Triphenyl Compounds of Group VA Elements

Shobatake, Kosuke; Postmus, C.; Ferraro, John R.; Nakamoto, Kazuo

doi:10.1366/000370269774381193

Cited by 120 publications

(28 citation statements)

References 9 publications

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“…This can be explained by a decrease in double bond character because of electron delocalization throughout the 0-C-N-C-0 system, resulting from N(3) deprotonation. The peak at 1525 cm-' assigned to the "alternate bond stretch" (38) shows a very large increase in intensity in the infrared and Raman spectra of the anion compared to 1 -methylthymine and agrees with results obtained for the anion (39).…”

Section: Resultssupporting

confidence: 88%

The reaction of chloro(triphenylphosphine)gold(I) with 1-methylthymine

Faggiani¹,

Howard-Lock²,

Lock³

et al. 1987

Can. J. Chem.

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Can. J. Chem. 65, 1568 (1987). 1-Methylthyminato-N 3-triphenylphosphinegold(~) was prepared by reacting chloro(triphenylphosphine)gold(I) with 1-methylthymine in aqueous methanol at pH 11. The product was examined by X-ray crystallogra~hy and was foundJo have the orthorhombic space group C222' (no. 20) with cell dimensions a = 12.760(7) A, b = 1 1.530(2) A, c = 31.893(5) A, and eight formula units in the unit cell. Data were collected with use of M o K a radiation and a Syntex P2, diffractometer. The crystal structure was determined by standard methods and refined to R = 0.1 12 and R,,. = 0.076 on the basis of 4760 unique reflections. Bond lengths and bond angles are normal. Packing in the crystal lattice is dominated by the triphenylphosphine rings which arrange roughly as blades of a propellor and are the source of the crystal's chirality. The title and related compounds were also examined by 'H nmr, I3c nmr, and vibrational spectroscopy.

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Section: Resultssupporting

confidence: 88%

The reaction of chloro(triphenylphosphine)gold(I) with 1-methylthymine

Faggiani¹,

Howard-Lock²,

Lock³

et al. 1987

Can. J. Chem.

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“…The 432 and 395 cm-I infrared bands assigned to the Hg-P and Hg-CN stretching frequencies, respectively, are in fact due to the internal vibrations of triphenylphosphine (20). Our infrared and Raman data show that the skeletal vibrations for the dicyanobis(phosphine)mercury(II) complexes occur in the region below 400 cm-'.…”

Section: Vibrational Spectral Studiesmentioning

confidence: 59%

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

Goel¹,

Henry²,

Ogini³

1979

Can. J. Chem.

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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...

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“…1. A comparison of these spectra with the spectrum of triphenylbismuth-(111) (9) shows that the spectrum of the triphenylbismuth group in compounds of the type, Ph3BiX2, is almost identical to that of triphenylbismuth(II1). Thus the absorption bands at ca.…”

Section: Znjivred Spectramentioning

confidence: 97%