[Relation between complexes iotramolecular transfer and structure of [M(SS) (NN)](M = Zn2+, Cd2+)].

The title complexes of [M(SS)(NN)](M = Zn2+, Cd+; SS = 1,2-dicyano 1,2-ethylene -dithiolate or maleonitriledithiolate; NN = 5-nitro-1,10 phenanthroline) were synthesized. The electronic absorption spectra of complexes [M(SS)(NN)] in DMSO, DMF, acetone and Py were reported. The spectra absorption bands 270-280 nm, 320-350 nm and 350-390 nm are the intraligand pi(b) --> pi* transfer of ligand mnt(2-) and 5-NOz-phen. The spectra absorption band 400-500 nm is intramolecular charge transfer (LL'CT) from a ligand (mnt(2-)) to another ligand (5-NO2- phen) The relation between electronic spectra absorption band and correlative transition in the molecular orbital energy level diagram of the complexes was investigated. The LL'CT band of the title complexes is weaker by comparison with M(SS) (NN) (M = Co2+, Fe2+, Ni2+ and Cu2+). The LL'CT band of [M(SS) (NN)](M = Zn2+, Cd2+) (7b2 to 7b1) is symmetry forbidden.

[Changes of adenylate cyclase on cerebral regions related to mophine dependence in rats].

OBJECTIVE: To observe the changes of adenylate cyclase(AC) on cerebral regions related to morphine dependence in rats and investigate the relationship between the enzymological changes and the mechanism of morphine dependence. METHODS: The technique of enzyme-histochemistry was used to detect the variations of AC of special seven cerebral regions including frontalis cortex, lenticula, corpus amygdaloideun, substantia nigra, hippocampus, periaqueductal gray and locus coerleus in morphine dependent rats. The enzymological changes were observed by optical microscope. Changes of gray degree of these cerebral regions were also observed by using the image analysis system. RESULTS: Compared with those in control group, the contents of AC in morphine dependent groups were increased. CONCLUSION: The contents of AC are increase in those regions. The mechanism of morphine dependence close related to the increasing of AC. The correlation of the mechanism of morphine dependence and up-regulation of AC/cAMP-PKA system is discussed.

[Infrared spectra and coordinated mode of manganese (II), iron (II), cobalt (II) complexes with dithiolene and 1, 10-phenanthroline-5, 6-dione ligands].

The infrared spectra and far-infrared spectra of M(mnt)(phen-5, 6-dione) [M= Manganese(II), Iron(II), Cobalt(II). mnt2- = 1, 2-dicyano-1, 2-ethylenedithiolate or maleonitriledithiolate, phen-5, 6-dione = 1, 10-phenanthroline-5, 6-dione] are reported in detail. In infrared spectra and far-infrared, characteristic v (C[triplebond]N) , v (C==)) , (C==C) v (C-N), v (C-S), v (M-S) and V(M-N) are very strong. Far-infrared spectra shows that M-S bond is slightly strong than M-N bond. Through comparing infrared spectra, simple regular coordinate mode of M(mnt) (phen-5, 6-dione) is analysed. The relation between infrared spectra and structure of the title complexes is discussed. In the title complexes, transition metals ion with 1, 2-dicyano-1, 2-ethylenedithiolate and 1, 10-phenanthroline-5, 6-dione form quadridentate distortion tetrahedral configuration molecules. The symmetry is approximate to C2 and C2v.