Interaction of [ReO(SNS) (S)] and [99mTcO(SNS) (S)] mixed ligand complexes with glutathione: isolation and characterization of the product

Spectroscopic investigation and density functional theory calculations of mercaptobenzothiazole and mercaptobenzimidazole ligands and their rhenium complexes

“…As we see the protons near the Re=O core was assigned to the downfield region of the spectrum at -7.7 -7.6 ppm [16][17][18][19][20]. The Bimz-complexes demonstrate the same chemical shift behavior as the MBT-complexes.…”

“…The symmetric out-of-plane CH vibration was observed as a very strong band at 750 cm -1 . The strong band observed at 668 cm -1 and the weak bands at 603 and 706 cm -1 were attributed to C-S stretching modes [19]. It should be mentioned that the theoretical values are usually higher than the experimental data.…”

“…The intense band observed at 1455 cm -1 is a result of attributed to CC and CN stretch- ing and CH bending vibrations. The strong bands at 1012, 1033 and 1076 cm -1 are predicted to N-C = S group in addition to CCC and CH bending vibrations [18,19]. The very weak bands observed at 2640 and 2480 cm -1 can be interpreted as overtone bands of the fundamental frequencies at 1319 and 1244 cm -1 .…”

“…Table 9 show typical UV-Vis spectra with two signifycant absorption bands, one of them in the UV region at about 205 -240 nm corresponding to the π→π* band, and the other in the visible region at approximately 350 nm, which is characteristic of metal-oxygen complexes. [19][20][21][22]. The UV-Vis spectrum of [ReO(MBT) 2 Charge Transfer: n→ π* transitions and intraligand (IL) transitions: π→ π* [18].…”

Structural characterizations of an Re(IV) complex [ReCl4(OPPh3)2] and of an imino species [ReOCl2(PPh3)(η2-OC6H4-2-CHNH)] prepared from the reaction of [ReOCl3(PPh3)2] with salicylaldoxime

“…A well-developed approach to the structural modification of complexes with the {MO} 3+ core has been dubbed '3+1' chemistry [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] and exploits a dian-ionic tridentate ligand with XYZ donor groups (X=Z=S, O; X=S and Z=O; Y=-NR, O, S) and a monodentate thiol. However, it has been noted that such '3+1' systems may undergo further reactions to achieve six coordination and/or closed shell configurations [22].…”