640274-44-8

Basic information

• Product Name: (4,5-diazafluoren-9-one benzoylhydrazone)chlorotricarbonylrhenium(I)
• CAS NO: 640274-44-8
• Molecular Weight: 608.027
• Mol File: 640274-44-8.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: (4,5-diazafluoren-9-one benzoylhydrazone)chlorotricarbonylrhenium(I)(CAS DataBase Reference)
• NIST Chemistry Reference: (4,5-diazafluoren-9-one benzoylhydrazone)chlorotricarbonylrhenium(I)(640274-44-8)
• EPA Substance Registry System: (4,5-diazafluoren-9-one benzoylhydrazone)chlorotricarbonylrhenium(I)(640274-44-8)

Safety Data

• Hazardous Substances Data: 640274-44-8(Hazardous Substances Data)

Upstream product

• 14099-01-5 rhenium(I) pentacarbonyl chloride 
• 101342-95-4 N′-(di(pyridin-2-yl)methylene)benzohydrazide 
• 28862-29-5 fac-bis(acetonitrile)chlorotricarbonylrhenium(I) 

Downstream Products

• 682335-58-6 fac-tricarbonylchloro(di-2-pyridylketonebenzoylhydrazone)rhenium(I) dimethylformamide solvate 

Relevant articles and documents

Optical, electrochemical and structural studies of the first rhenium compound of di-2-pyridylketone benzoylhydrazone (dpkbz) fac-Re(CO) 3(dpkbh)Cl

The reaction between Re(CO)5Cl and di-2-pyridylketone benzoylhydrazone (dpkbh) in refluxing toluene gave fac-Re(CO) 3(dpkbh)Cl in good yield. Spectroscopic and electrochemical measurements on fac-Re(CO)3(dpkbh)Cl revealed strong solvent-solute interaction, as manifested by the sensitivity of its reduction potentials and electronic absorption spectra to solvent variations. Spectroscopic and thermo-optical measurements in polar solvents in the presence of NaBH 4 and NaBF4, or NaOH and citric acid reveal reversible interconversion between the low- and high-energy electronic states of fac-Re(CO)3(dpkbh)Cl at 440 and 318 nm. Electrochemical measurements on fac-Re(CO)3(dpkbh)Cl show irreversible redox processes pointing to electrochemical transformations following the first electronic transfer(s). Crystals of fac-Re(CO)3(dpkbh)Cl obtained from an acetonitrile solution of fac-Re(CO)3(dpkbh)Cl are centric and crystals of fac-Re(CO)3(dpkbh)Cl·dmso obtained from a dmso solutions of fac-Re(CO)3(dpkbh)Cl are acentric. Structural studies show non-identical twins of fac-Re(CO)3(dpkbh)Cl and fac-Re(CO) 3(dpkbh)Cl·dmso with distorted octahedral coordination about rhenium and the conformation about the amide group is syn- in fac-Re(CO) 3(dpkbh)Cl and anti- in fac-Re(CO)3(dpkbh)Cl·dmso. The packing of molecules shows a web of hydrogen bonds that may account for the stability of different conformations observed in the solid state.

Tricarbonyl rhenium(I) and technetium(I) complexes with hydrazones derived from 4,5-diazafluoren-9-one and 1,10-phenanthroline-5,6-dione

Tricarbonylrhenium(I) and -technetium(I) halide (halide = Cl and Br) complexes of ligands derived from 4,5-diazafluoren-9-one (df) and 1,10-phenanthroline-5,6-dione (phen) derivatives of benzoic and 2-hydroxybenzoic acid hydrazides have been prepared. The