Darstellung und Eigenschaften des Tetrabutylammonium-iso-oktamolybdats [N(C4H9)4] 4Mo8O26 / Preparation and Properties of Tetrabutylammonium iso-octamolybdate [N(C4H9)4]4Mo8O26

1977 ◽  
Vol 32 (8) ◽  
pp. 853-857 ◽  
Author(s):  
Joachim Fuchs ◽  
Irene Brüdgam
Keyword(s):  
Single Crystals ◽  
Raman Spectra ◽  
Organic Solvents ◽  
Uv Spectroscopy ◽  
Sodium Molybdate ◽  
Ir And Raman Spectra ◽  
Ion Formation ◽  
Ir And Raman

From weakly acidified solutions of sodium molybdate by addition of tetrabutylammonium ions an iso-octamolybdate [N(C4H9)4]4Mo8 O26 is formed whose anion has a structure different from the known alkali or ammonium octamolybdates. Single crystals are obtainable by reaction in organic solvents. The IR and Raman spectra are presented. The decomposition of the anion by aging in dichloroethane in solution was investigated by UV spectroscopy. This study offers new aspects concerning the mechanism of polymolybdate ion formation.

ChemInform Abstract: IR and Raman Spectra of Benzil Single Crystals

ChemInform ◽  
1989 ◽  
Vol 20 (47) ◽  
Author(s):  
L. COLOMBO ◽  
D. KIRIN ◽  
V. VOLOVSEK ◽  
N. E. LINDSAY ◽  
J. F. SULLIVAN ◽  
...  
Keyword(s):  
Single Crystals ◽  
Raman Spectra ◽  
Ir And Raman Spectra ◽  
Ir And Raman

Darstellung von Heteropolymolybdaten in organischen Lösungsmitteln / Preparation of Heteropolymolybdates in Organic Solvents

1977 ◽  
Vol 32 (4) ◽  
pp. 403-407 ◽  
Author(s):  
Joachim Fuchs ◽  
Irene Brüdgam
Keyword(s):  
Raman Spectra ◽  
Organic Solvents ◽  
Ir And Raman Spectra ◽  
Metal Salts ◽  
The Novel ◽  
Nonaqueous Solutions ◽  
Ir And Raman

Heteropolymolybdates are obtainable from nonaqueous solutions. They are formed by reaction of molybdates or isopolymolybdates soluble in organic solvents with oxo acids or metal salts.Compounds with the anions TeMo6O246-, MIIIMo6O24H63- (MIII = Fe, Al, Cr), ΜIIMo6O24Η64- (MII = Zn, Cu, Co, Ni), PMo12O403-, as well as the novel heteropolyanion Ρ2Mo4O194- were obtained.The IR and Raman spectra are discussed.

IR and Raman spectra of poled and unpoled LiNbO3 single crystals

2008 ◽  
Vol 460 (1-2) ◽  
pp. 74-78 ◽  
Author(s):  
Aleksandar Golubović ◽  
Radoš Gajić ◽  
Ivana Hinić ◽  
Maja Šćepanović
Keyword(s):  
Single Crystals ◽  
Raman Spectra ◽  
Ir And Raman Spectra ◽  
Ir And Raman

scholarly journals Effect of addition of organic solvents on properties of the chemically synthesized polyaniline in aqueous solutions

e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Shuangxi Xing ◽  
Shengyu Jing ◽  
Chun Zhao ◽  
Zichen Wang
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Raman Spectra ◽  
Organic Solvents ◽  
High Conductivity ◽  
Ir And Raman Spectra ◽  
Conductivity Measurements ◽  
Ft Ir ◽  
Ir And Raman

AbstractIn the process of polymerization of aniline in aqueous solution, different kinds or volumes of organic solvents were added. The effects of the organic solvents on the morphology, structure, conductivity and water-dispersity of the resulting polyaniline (PANI) were investigated with the aid of SEM, UV-Vis, FT-IR and Raman spectra and conductivity measurements. The results showed that the weak H-bond interactions between PANI and the solvents might play an important role in forming uniform nanofibers with relatively high conductivity and good waterdispersity. However, excessive addition of organic solvents led to the aggregation of the nanofibers and the corresponding PANI had a bad water-dispersity.

scholarly journals Raman and IR spectra of pure and doped forsterite single crystals

2009 ◽  
Vol 41 (1) ◽  
pp. 43-47 ◽  
Author(s):  
A. Golubovic ◽  
R. Gajic ◽  
M. Scepanovic
Keyword(s):  
Ir Spectra ◽  
Single Crystals ◽  
Raman Spectra ◽  
Room Temperature ◽  
Ir And Raman Spectra ◽  
Czochralski Technique ◽  
X Ray ◽  
Ir And Raman ◽  
Phonon Properties ◽  
Raman And Ir Spectra

Forsterite single crystals were grown by the Czochralski technique in air. The lattice parameters were determined by X-ray power diffraction. The IR and Raman spectra of pure and doped (V3+, V5+, and Ni4+) Mg2SiO4 single crystals were measured at room temperature. We studied the phonon properties and discussed the influence of dopants.

Polarized IR and Raman spectra of Na5H3(SeO4)4·2H2O single crystals

1997 ◽  
Vol 436-437 ◽  
pp. 257-279 ◽  
Author(s):  
J. Baran ◽  
M.K. Marchewka ◽  
H. Ratajczak
Keyword(s):  
Single Crystals ◽  
Raman Spectra ◽  
Ir And Raman Spectra ◽  
Ir And Raman
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