摘要:

In the course of studies of laser induced infrared fluorescence (1,2) we have noted unexpected chemical reactions. Several other studies of IR laser induced reactions have been reported elsewhere, but all involved more powerful lasers, and/or the use of laser beam focused to a point (3,4,5). Such high power conditions caused fragmentation of molecules in the laser path and chemical reactions of the fragments.

ISSN:0038-7010    

DOI:10.1080/00387017208065398

出版商:Taylor & Francis Group    

年代:1972

数据来源: Taylor

摘要:

It is shown in this note that the modified form of the Lippincott-Schroeder potential function [1, 2] which has been extensively used by us in theoretical studies of the vibrational spectra of liquid water [3, 4] gives a reasonably good value of the bond energy.

ISSN:0038-7010    

DOI:10.1080/00387017208065399

出版商:Taylor & Francis Group    

年代:1972

数据来源: Taylor

摘要:

In recent years, at least two groups1,2have developed programmes for combined conformational and vibrational analysis of complicated molecular systems. A version of one of these systems2is currently being adapted for work on coordination complexes. In such work experimental data are needed, and they stem almost exclusively from x-ray structural determinations, and infrared spectra of solids. Most calculational schemes so far deal with isolated molecules, and as one objective of the calculations is to provide thermodynamic functions, which, as far as coordination complexes are concerned, are measured in aqueous solution, we consider it necessary to compare some key properties of the substances as measured in the solid state and in solution. In particular, we want to investi- gate the extent to which internal vibrations are independent of the surroundings of the complexion.

ISSN:0038-7010    

DOI:10.1080/00387017208065400

出版商:Taylor & Francis Group    

年代:1972

数据来源: Taylor

摘要:

The validity of the Tanttila's empirical relation has been tested by calculating the fundamental vibrational energy of all the halides of group III A elements. A modification to this relation has been suggested and the validity of the modified relation has also been tested. A comparison of the results by the two relations with the experimental value shows, how the present modification contributes substantially towards the determination of the fundamental vibrational energy of these ionic diatomic molecules.

ISSN:0038-7010    

DOI:10.1080/00387017208065401

出版商:Taylor & Francis Group    

年代:1972

数据来源: Taylor

摘要:

Rydberg transitions for the interhalogen IBr, are reported in the wavelength region 160-130 nm.

ISSN:0038-7010    

DOI:10.1080/00387017208065402

出版商:Taylor & Francis Group    

年代:1972

数据来源: Taylor

摘要:

Schiff base coordination compounds of amino acids are good models to study the transamination reaction2,3of vitamin B6. Several studies4-6have focused on the preparation, characterization and spectra study of these Schiff base coordination compounds, represented schematically in Figure 1, where R has been varied. In our continued studies of Cu(II) coordination compounds of amino acids, we have prepared a series of compounds with alanine (R=CH3) and either a 4 or 5 substituent on the ring (X=H, OH, NO2, Cl). In order to obtain as many of the EPR magnetic parameters as possible7, we prepared solid solutions in Zn(II) matrices with a Zn(II) to Cu(II) ratio of about 95:5. In this fashion we were able to reduce the dipole coupling and to calculate the [sgrave] molecular orbital coefficients for this important new series of compounds.

ISSN:0038-7010    

DOI:10.1080/00387017208065403

出版商:Taylor & Francis Group    

年代:1972

数据来源: Taylor

摘要:

In connection with the possibility of spectroscopic study of equilibria, caused by the proton transfer in hydrogen bondI, of great interest are the amine-phenol systems. Increasing of the protonodonating power of the OH phenol group necessary for the proton transfer to occur could be obtained by introducing electronegative substituents into the ring. According to2,3the protonodonating power in the series of phenol chloroderivatives widely ranges, pentachlorophenol (PCP) being the most active donor of a proton in the series.

ISSN:0038-7010    

DOI:10.1080/00387017208065404

出版商:Taylor & Francis Group    

年代:1972

数据来源: Taylor

摘要:

This is a scanned image of the original Editorial Board page(s) for this issue.

ISSN:0038-7010    

DOI:10.1080/00387017208065397

出版商:Taylor & Francis Group    

年代:1972

数据来源: Taylor