Infrared Spectra of Substituted Thiocyanate Complexes. The Effect of the Substituent on Bond Type. II

1966 ◽  
Vol 5 (6) ◽  
pp. 1025-1028 ◽  
Author(s):  
I. Bertini ◽  
A. Sabatini
Keyword(s):  
Infrared Spectra ◽  
Type Ii ◽  
Bond Type ◽  
Thiocyanate Complexes

scholarly journals Resonanz-Raman-Effekt von Thiocyanatkomplexen einiger Übergangsmetalle

1970 ◽  
Vol 25 (10) ◽  
pp. 1394-1400 ◽  
Author(s):  
W. Krasser ◽  
H. W. Nürnberg
Keyword(s):  
Raman Spectrum ◽  
Infrared Spectra ◽  
High Intensity ◽  
High Frequency ◽  
Resonance Raman ◽  
Ammonium Salts ◽  
Iron Cobalt ◽  
Decay Products ◽  
Thiocyanate Complexes ◽  
Resonance Raman Spectra

Abstract The thiocyanates of the transition metals iron, cobalt, copper as well as of rhenium and of tech-netium appear in solution as strongly coloured complexes. The resonance raman bands in the sol-vent acetonitrile are investigated. To achieve an unambiguous identification the infrared spectra were recorded too. The change in position and structure of the acetonitrile bands indicates strong complexation of iron, cobalt and copper with acetonitrile, thus indicating the existence of mixed acetonitrile-thiocyanate complexes. The resonance raman spectra of the rhenium-and technetium-thiocyanates present as tetramethyl ammonium salts show however no raman-and infrared-bands of complexed acetonitrile molecules.In the raman spectrum of the thiocyanates of iron, cobalt and copper mainly the totally sym-metric C≡N, S-C, Me-S and Me-N valence vibrations are observed, among which the S-C vibration shows a remarkably high intensity. Besides, a series of bands is obtained which is inter-preted partly as caused by decay products, and partly as bands of complexed acetonitrile. The thiocyanates of rhenium and of technetium show the three possible valence vibrations only. The high frequency of the S-C valence indicates the N-coordination of the thiocyanate group.

scholarly journals NEAR-INFRARED SPECTRA AND INTRINSIC LUMINOSITIES OF CANDIDATE TYPE II QUASARS AT 2

2014 ◽  
Vol 788 (1) ◽  
pp. 91 ◽  
Author(s):  
Jenny E. Greene ◽  
Rachael Alexandroff ◽  
Michael A. Strauss ◽  
Nadia L. Zakamska ◽  
Dustin Lang ◽  
...  
Keyword(s):  
Infrared Spectra ◽  
Near Infrared ◽  
Type Ii ◽  
Near Infrared Spectra

Some amine-thiocyanate complexes of nickel(II)

1966 ◽  
Vol 19 (8) ◽  
pp. 1423 ◽  
Author(s):  
NF Curtis ◽  
YM Curtis
Keyword(s):  
Infrared Spectra ◽  
Reflectance Spectra ◽  
Magnetic Susceptibilities ◽  
Thiocyanate Ion ◽  
Thiocyanate Complexes

The preparation and properties of Ni(l,3-pn)2(NCS)2, Ni(trien)(NCS)2, Ni(tet a)(NCS)2, Ni(tet b)(NCS)2, Ni(dien)(NCS)2, Ni(dpt)(NCS)2, Ni(en)2NCSClO4, and Ni(trien)NCSClO4 are described (1,3-pn = 1,3-diaminopropane, trien = triethylenetetramine, tet a and tet b are isomeric hexamethylcyclotetradecanes, dien = diethylenetriamine, dpt = dipropylenetriamine, en = ethylenediamine). The first four compounds are normal N-bonded dithiocyanato derivatives, the dien and dpt derivatives have structures with one N-bonded terminal, and one bridging thiocyanate ion, and the thiocyanate perchlorate compounds have structures with a bridging thiocyanate ion. Magnetic susceptibilities (all μeff c. 3.1 B.M.), infrared spectra (including that of N-deuterated Si(l,3-pn)2(NCS)2), reflectance spectra, and conductances in methanol and acetone are reported.

Infrared spectra and interstellar reddening of anonymous type II OH/IR stars

1985 ◽  
Vol 290 ◽  
pp. 296 ◽  
Author(s):  
R. D. Gehrz ◽  
J. A. Hackwell ◽  
G. L. Grasdalen ◽  
S. G. Kleinmann ◽  
S. Mason
Keyword(s):  
Infrared Spectra ◽  
Type Ii ◽  
Ir Stars

scholarly journals Caracterização da Esmeralda de Pirenópolis (Goiás, Brasil Central) por Espectroscopia no Infravermelho (Ftir)

2000 ◽  
Vol 27 (2) ◽  
pp. 79
Author(s):  
GÊNOVA MARIA PULZ ◽  
ÉLZIO DA SILVA BARBOZA ◽  
TANIA MARIA MARTINI DE BRUM ◽  
ADRIANI FISCHER ◽  
PEDRO LUIZ JUCHEM ◽  
...  
Keyword(s):  
Infrared Spectra ◽  
Room Temperature ◽  
Ftir Spectra ◽  
The Other ◽  
Water Molecules ◽  
Type I ◽  
Type Ii ◽  
Central Brazil ◽  
Peak Absorption

The infrared spectra of two natural samples of powdered emerald from Pirenópolis (Goiás State, Central Brazil) were measured at room temperature (~ 20ºC). Water molecules occur in two different configurations. Three absorption peaks (3656, 3592 and 1624 cm-1) record the vibrations of the type-II H2O. The peak absorption at 3691 cm-1 is assigned to type- I H2O vibrations. In addition, CO2 (2358 cm-1) and CH4 (2927-2925 cm-1) molecules were also detected in the FTIR spectra. These data can be applied to distinguish the Pirenópolis gem from the other Brazilian emeralds as well as its synthetic equivalents.

Infrared spectra of copper thiocyanate complexes

1968 ◽  
Vol 7 (3) ◽  
pp. 617-620 ◽  
Author(s):  
Richard H. Toeniskoetter ◽  
Stanley Solomon
Keyword(s):  
Infrared Spectra ◽  
Thiocyanate Complexes

Type II Solar Radio Bursts over Solar Cycle 21

1994 ◽  
Vol 144 ◽  
pp. 283-284
Author(s):  
G. Maris ◽  
E. Tifrea
Keyword(s):  
Solar Radio ◽  
Interplanetary Space ◽  
Impulsive Phase ◽  
Radio Bursts ◽  
Type Ii ◽  
Solar Radio Bursts ◽  
Strong Energy ◽  
Mass Ejection ◽  
Geophysical Effect ◽  
Radio Event

The type II solar radio bursts produced by a shock wave passing through the solar corona are one of the most frequently studied solar activity phenomena. The scientific interest in this type of phenomenon is due to the fact that the presence of this radio event in a solar flare is an almost certain indicator of a future geophysical effect. The origin of the shock waves which produce these bursts is not at all simple; besides the shocks which are generated as a result of a strong energy release during the impulsive phase of a flare, there are also the shocks generated by a coronal mass ejection or the shocks which appear in the interplanetary space due to the supplementary acceleration of the solar particles.

Sign in / Sign up

Export Citation Format

Share Document