Thermal decompositions of the trans -[Co(en) 2 Cl 2 ]Cl and cis -[Co(en) 2 Cl 2 ]Cl complex isomers have been studied using the TG–FTIR and TG–DSC–MS techniques. The measurements were carried out in argon atmosphere over the temperature range 293–873K. The influence of the ...
The meaning of CIS-TRANS ISOMERISM is geometric isomerism in unsaturated compounds or cyclic compounds depending usually on the presence in the molecule of a pair of substituted groups (as unsymmetrically substituted methylene groups) so that the isomers
The cis and trans isomers do not interconvert in solutions of non-co-ordinating solvents, i.e. C6H6 or CH2Cl2, as shown by their distinctive 1H n.m.r. spectra. In the absence of geometrical constraints zirconium(IV) prefers six-co-ordination and a cis arrangement of the chloride ligands....
cis-Pt(NH3)2Cl2 and trans-Pt(NH3)2Cl2 inhibit DNA synthesis in cultured L1210 leukemia cells A comparison of the inhibition of DNA synthesis by the two geometrical bidentate isomers cis- and trans-Pt(NH3)2Cl2 and by the monodentate [Pt(dien)Cl]Cl i... B,Salles,J L,Butour,C,Lesca...
Theoretical studies of separation of cis–trans isomers using dinuclear (Cu2+- and Zn2+-based) cryptates cis-trans isomers of fumarate (fum 2 ), maleate (male 2 ) and 1,2-cyclopropane dicarboxylate with Cu 2+ - and Zn 2+ -based dinuclear cryptates. ... S Bandaru,NJ English,JMD Mac...
In the series ofmethyl complexes for the Ni and the Pd complexes, the trans isomers were found to be slightly more stable than the cis isomers by 1.9 (Ni) and 0.6 (Pd) kcal mol-1. In the case of the Pt complex, both isomers were computed to be essentially identical in their total...
Separation of the cis - and trans -isomers of 1,2-benzylidene glyceryl esters has not yet been achieved by column or gas liquid chromatography. However these isomers were separated by thin layer chromatography in the present study and the parent cyclic alcohols regenerated by alkaline hydrolysis. ...
Re:Cis/Trans Isomers « Reply #1 on: September 14, 2004, 12:27:44 AM » Cis and trans are actually rather imprecise ways of naming compounds and lead to a lot of confusion. Unfortunately it's part of the chemistry vernacular.Your first example doesn't make sense because it isn't...
Cis vs Trans Isomers and E vs Z Isomers. What are they, what's the difference and when to use each case. This tutorial will give you a detailed understand of when and how to use each of these isomers in your organic chemistry course. From understanding g
The molecular structure of the trans isomer of metal-free phthalocyanine (H2Pc) is determined using the gas electron diffraction (GED) method and high-level quantum chemical calculations. B3LYP calculations employing the basis sets 6-31G**, 6-311++G**, and cc-pVTZ give two tautomeric isomers...