摘要:

AbstractTwenty‐two new coordination compounds are reported with acetaldehyde, propionaldehyde and benzaldehyde as the ligands,viz. M(CH3CHO)6(In‐Cl4)2, M(CH3CHO)6(FeCl4)2, M(C2H5CHO)6(InCl4)2and M(C6H5CHO)6(In‐Cl4)2 with M is Mg, Mn, Fe, Co, Ni and (except for acetaldehyde) Zn.In the complexes the carbonyl stretching vibration is shifted to lower frequencies compared with this vibration in the free ligands. The magnitudes of the shifts are dependent on the metal ions. Frequency‐shifts of other ligand vibrations are also observed. When the shifts are dependent on the metal ions the magnitudes of the shifts follow the Irving‐Williams sequence.For the acetaldehyde and propionaldehyde solvates a metal‐dependent absorption band appears in the far infrared, which is attributed to the metal‐ligand stretching vibration. This band was not observed in the benzaldehyde solvates.Investigation of ligand field spectra indicated the presence of octahedral species M(O)62+in the solid compounds. Values for Dq and B for the Co(II) and Ni(II) compounds are reported.A possible relationship between the groups attached to the CO group and the values obtained for the spectrochemical parameter

ISSN:0165-0513    

DOI:10.1002/recl.19710900112

出版商:WILEY‐VCH Verlag    

年代:1971

数据来源: WILEY

摘要:

AbstractThe synthesis of 38 compounds with structure RSOn‐CH2‐SCN, in which R is a heterocyclic radical and n = 0, 1, or 2, is described and their fungicidal and phytotoxic activities are disc

ISSN:0165-0513    

DOI:10.1002/recl.19710900113

出版商:WILEY‐VCH Verlag    

年代:1971

数据来源: WILEY

摘要:

Abstract5‐Methoxy‐, 5‐ethoxy‐, 5‐methylthio‐ and 5‐phenyl‐ 4‐chloro‐2‐phenyl‐pyrimidines are transformed into open‐chain products by reactions with potassium amide in liquid ammonia at — 33°. The mechanism of this reaction has been elucidated with help of14C‐labelled pyrimidines. It is demonstrated that the amide ion attacks C(6) of the pyrimidine nucleus and causes

ISSN:0165-0513    

DOI:10.1002/recl.19710900114

出版商:WILEY‐VCH Verlag    

年代:1971

数据来源: WILEY

ISSN:0165-0513    

DOI:10.1002/recl.19710900101

出版商:WILEY‐VCH Verlag    

年代:1971

数据来源: WILEY