Isotopic infrared study of some nickel(II) and copper(II) complexes containing heterocyclic dithiocarbamate ligands

Desseyn, H. O.; Fabretti, Antonio C.; Forghieri, Fabrizia; Preti, Carlo

doi:10.1016/0584-8539(85)80012-x

Cited by 22 publications

(20 citation statements)

References 4 publications

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“…spectral data (cm )1 ) and e.p.r. spectral data of the complexes (1)-(5) between monodentate and bidentate Rdtc ) ligands [4,7,22]. The presence of only one strong band supports the bidentate coordination of the dithio ligands, whereas a doublet is expected in the case of monodentate coordination [18,23].…”

Section: Ir Spectramentioning

confidence: 80%

“…The heteroatoms (N, O, S) in the piperidine ring influence both the m(C'N) and m(C'S) values which decrease in the order of the complexes with: Pipdtc > N-Mepzdtc > Pzdtc > Morphdtc > Timdtc ligands. This behavior, as it has been said, can be attributed to the electron releasing ability of the heterocyclic atom which forces a high electron density towards the SCS group [18,22].…”

Section: Ir Spectramentioning

confidence: 83%

“…This fact can be attributed to the electron releasing ability of the heterocyclic group which forces a high electron density towards the sulphur atoms, via the p-system, thus producing greater double bond character in the C'N bond. All the complexes exhibit m(C'N) bands in the 1470-1480 cm -1 range, which lie between m(C==N) and m(C-N), in the 1640-1690 and 1250-1350 cm -1 range [22], respectively.…”

Section: Ir Spectramentioning

confidence: 97%

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Syntheses and properties of mixed dinuclear copper(II) complexes with heterocyclic dithiocarbamates and a cyclic octadentate tertiary amine

Sovilj

Avramović²,

Katsaros

2004

Transition Metal Chemistry

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Five new Cu II complexes of general formula [Cu 2 (Rdtc)tpmc](ClO 4 ) 3 , (1)-(5), where tpmc and Rdtc ) refer to N,N¢,N¢¢,N¢¢¢-tetrakis(2-pyridylmethyl)-1,4,8,11-teraazacyclotetradecane and piperidine-(Pipdtc), 4-morpholine-(Morphdtc), 4-thiomorpholine-(Timdtc), piperazine-(Pzdtc) or N-methylpiperazine-(N-Mepzdtc) dithiocarbamates, respectively, have been prepared. Elemental analyses, conductometric and magnetic measurements, u.v./vis, i.r., e.p.r. and mass spectroscopy have been employed to characterize them. The complexes adopt an exo coordination of Cu II ions and tpmc. The dithiocarbamate ion joins both the sulphur and the copper atoms acting as a bridging ligand The presence of different heteroatoms in the piperidine ring influences the m(C'N) and m(C'S) vibrations which decrease in the order of the complexes: Pipdtc > N-Mepipdtc > Pzdtc > Morphdtc > Timdtc ligands. Attention has been paid to the detailed mechanism of the mass spectral fragmentation of the complexes. The g eff factors of the complexes have been also estimated by e.p.r. spectra. Finally, the complexes obtained demonstrate microbiologycal activity against some bacteria.

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Section: Ir Spectramentioning

confidence: 80%

Section: Ir Spectramentioning

confidence: 83%

Section: Ir Spectramentioning

confidence: 97%

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Syntheses and properties of mixed dinuclear copper(II) complexes with heterocyclic dithiocarbamates and a cyclic octadentate tertiary amine

Sovilj

Avramović²,

Katsaros

2004

Transition Metal Chemistry

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“…This behavior can be attributed to the electron releasing ability of the heterocyclic atom that forces a high electron density towards the SCS group. 45,46 The symmetric and antisymmetric stretching vibrations observed near 900 cm -1 can be attributed to a cis-[MoO 2 ] 2+ core. 47 Generally, the wave 58 SOVILJ et al…”

Section: Spectroscopic Propertiesmentioning

confidence: 96%

“…51,53 Length difference between Mo13-S18 (Mo13-S20) and Mo13-S19 (Mo13-S21) is a consequence of the trans influence of the oxo--group. 45 The two Rdtc -ligands are oriented in the cis-position toward each other coordinated to metal ion via their deprotonated dithiocarbamato (CS 2 -) groups, as presented in Figs. 1a and 1b for complexes 1 and 3, respectively.…”

Section: Molecular Modelingmentioning

confidence: 99%

Spectroscopic properties and antimicrobial activity of dioxomolybdenum(VI) complexes with heterocyclic S,S’-ligands

Sovilj

Mitić

Drakulić

et al. 2012

JSCS

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Five new dioxomolybdenum(VI) complexes of the general formula [MoO 2 (Rdtc) 2 ], 1-5, where Rdtc -refer to piperidine (Pipdtc), 4-morpholine (Morphdtc), 4-thiomorpholine (Timdtc), piperazine (Pzdtc) or N-methylpiperazine (N-Mepzdtc) dithiocarbamates, respectively, have been prepared. The complexes were characterized by elemental analysis, conductometric measurements, electronic, IR and NMR spectroscopy. The complexes 1-5 contain a cis-MoO 2 group and have an octahedral geometry. Two dithiocarbamato ions join as bidentates with both the sulfur atoms to the molybdenum atom. The presence of different heteroatoms in the piperidinо moiety influences the ν(C N) and ν(C S) vibrations, which wavelengths decrease in the order: Pipdtc > N--Mepzdtc > Morphdtc > Pzdtc > Timdtc ligands. Based on their spectral data, the molecular structures of complexes 1-5 were optimized at the semi-empirical molecular-orbital level, and the geometries, as obtained from calculations, are described. The antimicrobial activities of the complexes were tested against nine different laboratory control strains of bacteria and two strains of the yeast Candida albicans. All the tested strains were sensitive. Complexes bearing heteroatom in position 4 of piperidine moiety were significantly more potent against the tested bacteria compared to the corresponding ligands.

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Crystal Structure and Spectroscopic Studies of Bis (morpholine dithiocarbamate) Nickel(II) Complex, Ni(C₄H₈ONCS₂)₂

Pan

Wang

2001

Chin. J. Chem.

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Isotopic infrared study of some nickel(II) and copper(II) complexes containing heterocyclic dithiocarbamate ligands

Cited by 22 publications

References 4 publications

Syntheses and properties of mixed dinuclear copper(II) complexes with heterocyclic dithiocarbamates and a cyclic octadentate tertiary amine

Syntheses and properties of mixed dinuclear copper(II) complexes with heterocyclic dithiocarbamates and a cyclic octadentate tertiary amine

Spectroscopic properties and antimicrobial activity of dioxomolybdenum(VI) complexes with heterocyclic S,S’-ligands

Crystal Structure and Spectroscopic Studies of Bis (morpholine dithiocarbamate) Nickel(II) Complex, Ni(C₄H₈ONCS₂)₂

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Isotopic infrared study of some nickel(II) and copper(II) complexes containing heterocyclic dithiocarbamate ligands

Cited by 22 publications

References 4 publications

Syntheses and properties of mixed dinuclear copper(II) complexes with heterocyclic dithiocarbamates and a cyclic octadentate tertiary amine

Syntheses and properties of mixed dinuclear copper(II) complexes with heterocyclic dithiocarbamates and a cyclic octadentate tertiary amine

Spectroscopic properties and antimicrobial activity of dioxomolybdenum(VI) complexes with heterocyclic S,S’-ligands

Crystal Structure and Spectroscopic Studies of Bis (morpholine dithiocarbamate) Nickel(II) Complex, Ni(C4H8ONCS2)2

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Crystal Structure and Spectroscopic Studies of Bis (morpholine dithiocarbamate) Nickel(II) Complex, Ni(C₄H₈ONCS₂)₂