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Thiourea effect on the lignin biodegradation
(1987)
Lignin degradation by peroxidase or an extracellular crude ligninase in the presence of thiourea is enhanced. Veratryl alcohol, exhibits the same behaviour in both cases. Thiourea is proposed as an additive in biopulping
Materials chemistry in 25 years of Brazilian Chemical Society.
(Soc Brasileira QuimicaSao PauloBrasil, 2002)
Rede de conhecimento em estequiometria: produção de animações e simulações em laboratório virtual como facilitador do ensino-aprendizagem em química
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilUTFPR, 2014)
An interactive guide with animations created from adobe flash professional program (swf) contains scripts that will allow chemistry students carrying out experiments in a virtual laboratory using the experimental simulation ...
Green chemistry in Argentine
(European Chemistry Thematic Network Association, 2014-02-16)
Green chemistry is the chemists' response to the challenges of sustainable development and to the awareness of the impacts that human activities have on the environment, and of the implications of these impacts on our own ...
Inertia defects of urea
(1986)
By means of an iterative consistency method it has been determined a complete potential field for the urea molecule. The force constants set which interpretates well the vibrational spectra of urea and its deutero derivatives ...
Coordinating properties of some solvents in Cr(CO)5L complexes
(1988)
The influence of the donor-acceptor properties of several solvents on the Cr(CO)5 group in the solid [Cr(CO)5·solvent] complexes has been examined by spectroscopic methods. Relationships were found between the acceptor ...
New complexes [CpFe(dppe)thiophenes]PF6
(Elsevier Ltd, 1996)
The reactions of CpFe(dppe)I with thiophenes in the presence of T1PF6 afforded the new complexes [CpFe(dppe)thiophenes]PF6 (thiophenes = thiophene, 2-methyl-thiophene, 3-methyl-thiophene, 2,5-dimethyl-thiophene, benzothiophene ...
Ionization of the FeX bond in polar solvents: A spectroscopic study of CpFe(dppe)X complexes
(1993)
Electronic absorption spectra for complexes CpFe(dppe)X [with X = Cl, I and CN; dppe = (Ph)2PCH2CH2P(Ph)2; Cp = η5-C5H5] and the cationic derivative [CpFe(dppe)NCCH3]PF6 in different solvents have been measured. The lower ...
Vibrational spectra and normal coordinate analysis of diamminemercury(II) chloride with 14N/15N and H/D isotopic substitution
(1981)
The IR and Raman spectra of solid diamminemercury(II) chloride with 14N/15N and H/D isotopic substitution have been measured. The spectra have been interpreted assuming D3d symmetry for the [Hg(NH3)2]2+ cations which have ...
Ion-pairing and optical activity of diastereomeric zinc(II) 1, 10-phenanthroline, S-valinate systems
(1983)
A series of S-valinatobis(1, 10-phenanthroline)zinc salts in methanolic solution have been prepared and their conductivities and ORD spectra measured. A positive linear correlation of optical rotation with conductance was ...