Insertion of CS2 into a metal acetylide bond and conversion of the bonding mode of S2CCCPh from η2 to η3

Mathur, P. C.; Ghosh, Abhijit; Mukhopadhyay, Sarbani; Srinivasu, Chimalakonda; Mobin, Shaikh M.

doi:10.1016/s0022-328x(03)00466-2

Cited by 11 publications

(11 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The other weak absorptions are insignificant as they are spin forbidden. We have observed three bands in the case of [Cr(etdtc)Cl] 2 and assigned to the transitions from 4 A 2g ground term to three excited quartet terms (Table 3). The magnetic moment of 3.74 B.M.…”

Section: Electronic Spectra and Magnetic Momentsmentioning

confidence: 99%

“…1 A large number of compounds are known where CS 2 binds in η 1 -end on, η 2 -side or in η 3 -coordination modes. [2][3][4] The major advantage of using the small bite-angle of dithiocarbamato moiety as a stabilizing chelating ligand, is its unique property to remain intact under a variety of reaction conditions. 5 Nowadays copper(II) dithiocarbamate is successfully used as single source precursor for the growth of semiconducting copper sulfide thin films.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Template synthesis of symmetrical transition metal dithiocarbamates

Siddiqi¹,

Nami²,

Lutfullah³

et al. 2006

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

have chlorine bridged distorted-octahedral geometry. It has been observed that the dithiocarbamato moiety is symmetrically bonded in all the cases. A three stage TGA profile is observed for all the complexes leading to the formation of respective metal sulfide as the end-product. The molar conductance of 10 -3 mol L -1 solution of the complexes measured in DMSO is indicative of their non-ionic nature. Keywords: dithiocarbamates, transition metals, thermal analysis, symmetrical bonding IntroductionDithiocarbamates are used to stabilize a wide range of oxidation states of different metal ions. 1 A large number of compounds are known where CS 2 binds in η 1 -end on, η 2 -side or in η 3 -coordination modes. 2-4 The major advantage of using the small bite-angle of dithiocarbamato moiety as a stabilizing chelating ligand, is its unique property to remain intact under a variety of reaction conditions. 5 Nowadays copper(II) dithiocarbamate is successfully used as single source precursor for the growth of semiconducting copper sulfide thin films. 6 The iron(II), iron(III) dithiocarbamates have been studied for their spincrossover phenomenon, 7 radical traps for NO, 8 and as antioxidants and pro-oxidants in biological systems. 9 Diethyl dithiocarbamates are also known to inhibit the activity of Cu/Zn-superoxidedismutase (SOD) through the withdrawal of copper from the protein both in vivo and in vitro. 10 Some dialkyl-substituted dithiocarbamates have proved to be an efficient anti-alkylating, anti-HIV and froth-floatation agents. 11 The optical and electrochemical properties of dithiocarbamates can effectively be used to construct sensors for guest molecules and macromolecules. [12][13][14] In this paper, we report a convenient one-pot synthesis of the transition metal dithiocarbamates via template procedure. In the present work, a condensation reaction was carried out between acetylacetone, ethylenediamine, 108 Siddiqi et al. J. Braz. Chem. Soc. carbon disulfide in a single step leading to the formation of a ring like complex ( Figure 1 and Figure 2). ExperimentalHydrated metal chlorides (BDH) acetylacetone, carbon disulfide (Merck) and ethylenediamine (Ranbaxy) were used as received. Methanol was used after distillation. Elemental analyses (C, H, N and S) were carried out with a Flash EA-1112 Analyser, CE Instrument. IR spectra (4000-400 cm -1 ) were recorded on a FT-IR Perkin-Elmer Spectrum BX as KBr disc while the 600-200 cm -1 range were scanned on CsI on Nexus FT-IR Thermo Nicolet, Madison Wisconsin. The conductivity measurements were carried out with a CM-82T Elico conductivity bridge in DMSO. The electronic spectra were recorded on a Cintra 5GBC spectrophotometer in DMSO. Magnetic susceptibility measurements were done with a Sherwood Scientific MSB Auto at room temperature. TGA/DSC was performed with a Universal V3.8 B TA SDT Q600 Build 51 Thermal Analyzer under nitrogen atmosphere using alumina powder as reference material. The heating rate was maintained at 10 °C min -1 . The metal contents were estimated by...

show abstract

Section: Electronic Spectra and Magnetic Momentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Template synthesis of symmetrical transition metal dithiocarbamates

Siddiqi¹,

Nami²,

Lutfullah³

et al. 2006

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

show abstract

“…by photolysis of benzene solutions of 1a-c under constant bubbling of air according to the method reported by us earlier [12]. Compound 2 was obtainable from the oxo-compounds 3a-c in yields of 83%, 47% and 43%, respectively, the best yields being obtained when acetonitrile solutions of 3a-c and TMNO Á 2H 2 O were heated at 65°C.…”

Section: Resultsmentioning

confidence: 97%

“…were carried out by the method reported earlier [12]. acetonitrile solution (50 ml) of 1a (30 mg, 0.074 mmol).…”

Section: General Considerationsmentioning

confidence: 99%

“…Additionally, several other starting compounds such as b-ketodithioic acid and aryl ketones have been used for preparation of 1,2-dithiole-3-thione [10,11]. We have recently reported the preparation and crystal structures of some dithiopropiolato complexes, [(g 5 -C 5 R 5 )Mo(CO) 2 (g 2 -S 2 CCBCPh)] and their conversion to the oxo-derivatives [(g 5 -C 5 R 5 )Mo(O)(g 3 -S 2 CCBCPh)] (R ¼ H or Me) by photolysis in presence of air [12]. In this paper, we report on the utility of the coordinated dithiopropiolato ligands in these complexes for the preparation of 5-phenyl-1,2-dithiole-3-thione.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Formation of 5-phenyl-1,2-dithiole-3-thione from molybdenum dithiopropiolato complexes

Mathur

Avasare

Ghosh

et al. 2004

Journal of Organometallic Chemistry

Self Cite

View full text Add to dashboard Cite

Synthesis, Structure, and Reactivity of Ru^II Complexes with Trimethylsilylethinylamidinate Ligands

Seidel¹,

Dachtler²,

Pape³

2011

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

show abstract

Insertion of CS2 into a metal acetylide bond and conversion of the bonding mode of S2CCCPh from η2 to η3

Cited by 11 publications

References 43 publications

Template synthesis of symmetrical transition metal dithiocarbamates

Template synthesis of symmetrical transition metal dithiocarbamates

Formation of 5-phenyl-1,2-dithiole-3-thione from molybdenum dithiopropiolato complexes

Synthesis, Structure, and Reactivity of Ru^II Complexes with Trimethylsilylethinylamidinate Ligands

Contact Info

Product

Resources

About

Insertion of CS2 into a metal acetylide bond and conversion of the bonding mode of S2CCCPh from η2 to η3

Cited by 11 publications

References 43 publications

Template synthesis of symmetrical transition metal dithiocarbamates

Template synthesis of symmetrical transition metal dithiocarbamates

Formation of 5-phenyl-1,2-dithiole-3-thione from molybdenum dithiopropiolato complexes

Synthesis, Structure, and Reactivity of RuII Complexes with Trimethylsilylethinylamidinate Ligands

Contact Info

Product

Resources

About

Synthesis, Structure, and Reactivity of Ru^II Complexes with Trimethylsilylethinylamidinate Ligands