Synthesis,Structure, and Properties of Co2+ and Ni2+ Complexes with the Product of Condensation of 2-(7-Bromo-2-oxo-5-phenyl-3H-1,4-benzodiazepin-1-yl)acetohydrazide and 1H-Indole-2,3-dione

Russian Journal of General Chemistry - [Co(HydrHIz)] and [Ni(HydrHIz)]?2H2O (М = Co, Ni) complexes have been obtained via the reaction of M(CH3COO)2 with...     

Synthesis and Characterization of Zn(II) Complexes of 2-(7-Bromo-2-oxo-5-phenyl-2,3-dihydro-1<Emphasis Type="Italic">H</Emphasis>-1,4-benzodiazepin-1-yl)acetohydrazide and Its Condensation Products with Pyruvic Acid and Isatin

The systems ZnCl₂–2-(7-bromo-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-1-yl)acetohydrazide (Hydr)–propan-2-ol, ZnCl₂–Hydr–pyruvic acid (HPv), and Zn(CH₃COO)₂–Hydr–isatin(HIz)–propan-2-ol were studied. Optimal synthesis conditions were determined, and the complexes [Zn(Hydr)₂Cl₂], [Zn(HydrHPv)₂Cl₂], and [Zn(HydrIz)₂] were isolated. The complexes were characterized by elemental analysis, thermogravimetry, IR spectroscopy, and mass spectrometry. The electrical conductivities of the complexes were measured. The local environment of the central atom in the coordination entity was determined by X-ray absorption spectroscopy.     

Characterization of Cu(II) coordination compounds with 2-(7-bromo-2-oxo-5-phenyl-2,3-dihydro-1<Emphasis Type="Italic">Н</Emphasis>-1,4-benzodiazepin-1-yl)acetohydrazide and a product of its condensation with pyruvic acid

[Cu(HydrHPv)(H₂O)Cl₂] complex has been prepared and characterized by elemental analysis, IR spectroscopy, electrical conductivity, and magnetic susceptibility data. Structure of the coordination sphere and exact parameters of nearest surrounding of Cu²⁺ ions have been determined by X-ray absorption spectroscopy.     

Synthesis, structure, and properties of the Cu(II) coordination compounds with the pyruvic acid nicotinoyl and isonicotinoyl hydrazones

New coordination compounds of Cu(II) and hydrazones of nicotinic and isonicotinic acids have been prepared. The complexes isolated have been studied by elemental analysis, thermogravimetric analysis, magnetic susceptibility measurements, IR, diffuse reflectance, and EXAFS spectroscopy. The geometry of the compounds has been determined and the type of the ligands coordination has been revealed. Antibacterial activity of the complexes has been studied.     

Copper(II) coordination compounds with 2-(7-bromo-2-oxo-5-phenyl-3<Emphasis Type="Italic">H</Emphasis>-1,4-benzdiazepin-1-yl)acetohydrazide and products of its condensation with pyruvic acid

Some methods for the synthesis of copper(II) complexes with 2-(7-bromo-2-oxo-5-phenyl-3H-1,4-benzodiazepin-1-yl)acetohydrazide (Hydr) ([Cu(Hydr)(H₂O)Cl₂]) and products of its condensation with pyruvic acid ([Cu(HydrHPv)(H₂O)Cl₂] and, with alkalization to pH 8, [Cu(HydrPv)₂]) were developed, and the complexes themselves were synthesized. The complexes were characterized by electrical conductivity, magnetic susceptibility, and IR and EPR spectroscopy measurements.     

A Study of Сu(II) Complexes with Pyruvic Acid Nicotinoyl and Isonicotinoyl Hydrazones by EPR and X-ray Absorption Spectroscopy

The composition and structure of the Cu²⁺ coordination cores in the previously synthesized [CuCl(HNPv)] · H₂O, [CuCl(HIPv)] · H₂O, [Cu(AOc)(HNPv)], [Cu(AOc)(HIPv)], [Cu(NO₃)(HNPv)], and [Cu(NO₃)(HIPv)] complexes, where HNPv and HIPv pyruvic acid nicotinoyl and isonicotinoyl hydrazones, respectively, have been determined. The binuclear complex [Cu₂(HNPv)₂(H₂O)2(μ-Cl)] has been synthesized for the first time and characterized by elemental analysis and IR, EPR, and EXAFS spectroscopy. Its dimeric structure has been proved by magnetic susceptibility measurement and EPR.     

Products of complexation in the Cu(CH<Subscript>3</Subscript>CОО)<Subscript>2</Subscript>–2-(7-bromo-2-oxo-5-phenyl-3H-1,4-benzodiazepin-1-yl)acetohydrazide–salicylaldehyde–isopropanol system

Copper(II) complexes isolated from the Cu(CH₃COO)₂–2-(7-bromo-2-oxo-5-phenyl-3H-1,4-benzodiazepin-1-yl)acetohydrazide (Hydr)–salicylaldehyde (HSal)–isopropanol system [Cu₂(HydrSal)₂(μ-CH₃COO)] (I), [Cu(HydrSal)₂] (II) (HydrSal (hydrazone)is the condensation product of hydrazide and salicylaldehide) are synthesized and investigated. The complexes are characterized by elemental analysis, electrical conductivity measurements, and IR spectroscopy. The composition and structure of the Cu²⁺ coordination core are determined by ESR spectroscopy (I), magnetic susceptibility measurements and extended X-ray absorption fine structure (EXAFS) spectroscopy (II).     

Self-assembling in the systems МХ<Subscript>2</Subscript>–2-(7-bromo-2-oxo-5-phenyl-2,3-dihydro-1<Emphasis Type="Italic">Н</Emphasis>-1,4-benzdiazepin-1-yl)acetohydrazide–salicyl aldehyde (М = Сo,Ni, Zn; X = Cl,CH<Subscript>3</Subscript>COO)

By self-assembling in the systems MX₂–2-(7-bromo-2-oxo-5-phenyl-2,3-dehydro-1Н-1,4-benzdiazepin-1-yl)acetohydrazide (Hydr)–salicyl aldehyde (HSal) (М = Co, Ni, Zn; X = Cl, CH₃COO) the complexes of composition [Co(HydrSal)₂], [Ni(HydrSal)₂], [Zn(HydrHSal)Cl₂], [Zn(HydrSal)(CH₃COO)(H₂O)] have been synthesized. The local atomic structure of the coordination unit was determined by the method of X-ray absorption spectroscopy. Thermal stability, electroconductivity, and magnetic susceptibility of the complexes have been studied.