Effect of Silver Ion Coördination upon the Raman Spectra of Some Unsaturated Compounds<sup>1</sup>

Taufen, Harvey J.; Murray, M.; Cleveland, Forrest F.

doi:10.1021/ja01857a070

Cited by 49 publications

(13 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For the cyclopentene and cyclohexene complexes the values of v,=, are quite comparable to those obtained from the Raman spectra of aqueous AgNO, solutions of the olefins (10). Similarly, the value of v,=, from the Nujol mull of AgBF,-2C,Hlo is essentially identical to that obtained from the mull of AgC10,.2C6Hl0 (8).…”

Section: Infrared Spectrasupporting

confidence: 75%

Coordination compounds of olefins with anhydrous silver salts. IV. Complexes with some endocyclic monoolefins

Quinn¹,

VanGilder²

1969

Can. J. Chem.

View full text Add to dashboard Cite

A study has been made of the changes in the infrared and nuclear magnetic resonance (n.m.r.) spectra of cyclopentene, cyclohexene, cycloheptene, and cis-cyclooctene, and of their 1-methyl-substituted analogues upon formation of the silver tetrafluoroborate complexes, AgBF4.201efin. Based on the perturbation of the double bond stretching frequency in the olefin, the order of decreasing strength of the silver ion -olefin interaction is cyclopentene > cyclohexene > cis-cyclooctene % cycloheptene.

show abstract

Section: Infrared Spectrasupporting

confidence: 75%

Coordination compounds of olefins with anhydrous silver salts. IV. Complexes with some endocyclic monoolefins

Quinn¹,

VanGilder²

1969

Can. J. Chem.

View full text Add to dashboard Cite

show abstract

“…Due to the similar size of benzene and pyridine, in principle, they can substitute each other at the solvate site of compound (3). The benzene, however, can also be bound via its p-system to a silver cation as was stated in the case of AgClO 4 complexes [13,14]. The Raman spectroscopic study of compound (3) (Figure 3.)…”

Section: Decompositon Of (3) In Solid Phasementioning

confidence: 82%

“…The Raman spectroscopic study of compound (3) (Figure 3.) excludes the presence of Ag (+) -aromatic ring interactions which are present in the similar AgClO 4 * nC 6 H 6 (n=1, 2) complexes [13,14]. A single crystal X-ray diffraction measurement, together with the evaluation of the Fourier difference maps to determine the positions of the hydrogens in the six-membered solvate ring was performed.…”

Section: Decompositon Of (3) In Solid Phasementioning

confidence: 99%

Reasons for and Consequences of the Mysterious Behaviour of Newly Prepared Hemipyridine Solvate of Bis(pyridine)silver(I) Permanganate, Agpy2MnO4*0.5py

Kótai

Sajó

Fodor

et al. 2005

Transition Met Chem

View full text Add to dashboard Cite

Compositions and chemical identities of compounds formed in silver-permanganate-pyridine-water systems, as well as of their recrystallization products obtained from benzene-acetone solutions, have been elucidated. Three compounds: Agpy 2 MnO 4 (1), 7Agpy 2 MnO 4 Ã Agpy 4 MnO 4 (Agpy 2.25 MnO 4 ) (2) and Agpy 2 MnO 4 Ã 0.5py (Agpy 2.5 MnO 4 ) (3) were isolated. The compositions of the products obtained by a method described previously [1] for the preparation of 'Agpy 2 MnO 4 ' (1 Ã ) and 'Agpy 2.5 MnO 4 ' (2 Ã ) were determined and the constituent compounds identified. It has been established that the instability of compound (3) is due to the presence of the benzene, substituting for pyridine at the solvate sites. The benzene, however, is released at room temperature, disrupting the crystal lattice of (3), and the whole process leads to the loss of the solvate pyridine and to the formation of (1).

show abstract

“…Further results will be reported in conjunction with Lauterbur a t a later date on studies using high-resolution n.m.r. The suggestions of Chatt and Dullcanson (I) are in general confirmed by high resolution studies of proton resollance in solution but these are limited in scope when effects of chemical exchange are not properly taken into account (12). The study of solid complexes using proton resonance will show changes in interproton distances after coinplex formation (10) second moment of absorption line, nuclear spin quantum number of the proton (nucleus under study), nuclear "g" factor for the protons, nuclear magnetion, number of protons in the system, internuclear distance between nuclei j and k in the system, iluclear g factor of nuclear species f in the system, nuclear spin quantum nunlber of nuclear species f , internuclear distance between proton j and a nucleus f of the f system.…”

Section: Discussionmentioning

confidence: 93%

“…In the silver-olefin systeins an interaction is detected in the Raman spectruill of the olefin by observation of the frequency shift of the C=C stretch (12). This frequency shift in the platinum olefin complexes is about twice t h a t in the silver-olefin association (I).…”

Section: Discussionmentioning

confidence: 99%

A Study of the Dimer of Ethylene Platinous Chloride by Proton Magnetic Resonance

Reeves¹

1960

Can. J. Chem.

View full text Add to dashboard Cite

The protoll magnetic resonance line of the powdered ethylene platinous chloride dimer complcx has a second moment of 13.68+1 gauss2 a t 77'I< and an over-all line width of 11.15f 0.4gauss. Measi~ren~ents a t various temperatures between 77' and 329" I< show that both second moment and line width decrease slightly with temperature. The mean separation of the doublet observed a t 77'I< is found to be 4 . 8 0 f 0.3 g.The results are interpreted in terms of a distorted ethylene molecule whose interproton distances correspond to an intermediate struct~rre between ethylene and an ethane in a cis configuration but with two of the cis protons removed. 'This is consistent with earlier studies of the Raman spectrum. The a-type bond formed between a metal d orbital and an ethylene a" orbital is also consistent with the lack of rotation of ethylene a t elevated temperatures.Available results frorn high-resolution proton resonance studies of ethylene complexed to metal atorns in solutions is discussed.The bonding of ethylene to the metal in a series of olefin complexes of platinum and palladium I1 has been treated by Chatt and Duncanson (1). A satisfactory explanation of the infrared and dielectric studies has been achieved in terms of a u and a bond. The ethylene is co-ordinated to a dspz metal orbital by use of the ethylene a electrons in a u bond. I t has also been suggested that a donation of charge from a metal d orbital into the ethylene a* orbital fornls a a-type bond which also contributes to the stability of the conzpleu.Further studies of these compounds by X-ray diffraction of the solid have confirmed the suggestions of the earlier workers. Studies of Zeise's salt ( 2 ) , ethylene palladiu~n chloride dimer (3), and styrene palladium chloride (4) show that the ethylene is a t one corner of the square planar co~nplex with the ~netnl a t the center. Resolution was adequate to show the scattering froin the carbon electrolls indicating that the carbon atoms are .an equal distance above and below the plane of the complex. In the dimers, such as [PdC12C2H4]2, there are two chlorine atoms which act as a bridge between the two palladium atoms; the ethylene in the cli~ner units conlplexes in the trans positions.The infrared studies of the C-C stretching mode region indicate the loss of a center of symlnetry by the olefin since a \veal

show abstract

Effect of Silver Ion Coördination upon the Raman Spectra of Some Unsaturated Compounds¹

Cited by 49 publications

References 0 publications

Coordination compounds of olefins with anhydrous silver salts. IV. Complexes with some endocyclic monoolefins

Coordination compounds of olefins with anhydrous silver salts. IV. Complexes with some endocyclic monoolefins

Reasons for and Consequences of the Mysterious Behaviour of Newly Prepared Hemipyridine Solvate of Bis(pyridine)silver(I) Permanganate, Agpy2MnO4*0.5py

A Study of the Dimer of Ethylene Platinous Chloride by Proton Magnetic Resonance

Contact Info

Product

Resources

About

Effect of Silver Ion Coördination upon the Raman Spectra of Some Unsaturated Compounds1

Cited by 49 publications

References 0 publications

Coordination compounds of olefins with anhydrous silver salts. IV. Complexes with some endocyclic monoolefins

Coordination compounds of olefins with anhydrous silver salts. IV. Complexes with some endocyclic monoolefins

Reasons for and Consequences of the Mysterious Behaviour of Newly Prepared Hemipyridine Solvate of Bis(pyridine)silver(I) Permanganate, Agpy2MnO4*0.5py

A Study of the Dimer of Ethylene Platinous Chloride by Proton Magnetic Resonance

Contact Info

Product

Resources

About

Effect of Silver Ion Coördination upon the Raman Spectra of Some Unsaturated Compounds¹