Synthesis and Structural Characterization of Dibromidobis(N,N′-dimethylthiourea-κS)cadmium(II) and Diiodidobis(N,N′-dimethylthiourea-κS)cadmium(II)

Ahmad, Saeed; Altaf, Muhammad; Stœckli-Evans, Helen; Isab, Anvarhusein A.; Malik, Muhammam Riaz; Ali, Saqib; Shuja, Shaukat

doi:10.1007/s10870-011-0052-4

Cited by 15 publications

(12 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In view of this, cadmium(II) complexes of thiones have been widely studied in recent years [8][9][10][11][12][13][14][15][16]. The structural studies on cadmium(II) halide complexes of thiones describe that in most of the cases the structures consist of discrete mononmeric molecules with cadmium adopting a somewhat distorted tetrahedral coordination geometry [11][12][13][14][15][16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Crystal Structures of Cadmium Iodide Complexes of N,N′-Diethylthiourea and 1,3-Diazinane-2-thione

Ahmad

Amir²,

Naz

et al. 2012

J Chem Crystallogr

Self Cite

View full text Add to dashboard Cite

Two cadmium(II) iodide complexes, [Cd(Detu) 2 I 2 ] (1) and [Cd(Diaz) 2 I 2 ] (2) (Detu = N,N 0 -diethylthiourea; Diaz = 1,3-diazinane-2-thione) have been prepared and their structures been determined by X-ray crystallography. The crystal structures show that both complexes are mononuclear with the cadmium atom coordinated to two iodide ions and two thione ligands adopting a distorted tetrahedral geometry. Whereas, 2 exists as discrete monomeric species, the structure of 1 consists of three crystallographically independent molecules. The complexes were also characterized by IR and NMR ( 1 H and 13 C) spectroscopy.

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis and Crystal Structures of Cadmium Iodide Complexes of N,N′-Diethylthiourea and 1,3-Diazinane-2-thione

Ahmad

Amir²,

Naz

et al. 2012

J Chem Crystallogr

Self Cite

View full text Add to dashboard Cite

show abstract

“…The interest in cadmium(II) complexes of thiourea type ligands also arises because of their semiconducting and non linear optical properties [13,14]. Cadmium(II) is known to form a wide variety of 1 : 2 complexes with thiones (L) of the type, L 2 CdX 2 (where X is a halide or pseudoha lide), with structural arrangements entirely based on tetrahedral (somewhat distorted) environment [15][16][17][18][19][20][21][22][23][24][25][26][27]. In view of our interest on d 10 1 The article is published in the original.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and structural characterization of cadmium(II) complexes of tetramethylthiourea (Tmtu); X-ray structure of [Cd(Tmtu)2Cl2]

et al. 2012

View full text Add to dashboard Cite

The spectral characterization of cadmium(II) complexes of the general formula [Cd(Tmtu) 2 X 2 ] (Tmtu = tetramethylthiourea, X = Cl -, Br -, I -, and SCN -) as well as the X ray structure of one of them, [Cd(Tmtu) 2 Cl 2 ] (I) is described. In (I), the cadmium atom lies on a twofold rotation axis and has a distorted tetrahedral coordination environment defined by two S atoms of telramelhylthioures (Tmtu) ligands and two chloride ions. The crystal structure is stabilized by non classical intramolecular C-H⋅⋅⋅N and C-H⋅⋅⋅S hydrogen bonding interactions involving the methyl H and sulfur or nitrogen atoms. The spectroscopic data were discussed in terms of the nature of bonding.

show abstract

“…These structural reports describe that in most of the cases, cadmium(II) complexes exist as neutral monomeric [3][4][5][6][7][8][9][10][11][12][13][14][15][16] or polymeric [17][18][19] molecules of the general formula [CdL 2 X 2 ] with the cadmium atom possessing a tetrahedral or distorted octahedral coordination environment respectively. In some cases, ionic complexes of the type [CdL 4 ]X 2 (X = nitrate or sulfonate) are also formed [21, 22].…”

mentioning

confidence: 99%

Structural characterization of tetrakis(1,3-diazinane-2-thione)cadmium(II) sulfate

et al. 2015

View full text Add to dashboard Cite

A cadmium(II) complex tetrakis(1,3-diazinane-2-thione)cadmium(II) sulfate [Cd(Diaz) 4 ]SO 4 (1) is prepared and its crystal structure is determined by X-ray crystallography. The crystal structure of 1 consists of [Cd(Diaz) 4 ] 2+ and 2 4 SO − ions. In the complex ion, the central cadmium atom is coordinated by four Diaz molecules through sulfur atoms adopting a distorted tetrahedral geometry. The molecular structure is stabilized by N-H…O and N-H…S hydrogen bonding interactions. The complex is also characterized by IR and NMR spectroscopy and the spectroscopic data are discussed in terms of the nature of bonding.In recent years, considerable research efforts have been devoted to the structural characterization of cadmium(II) complexes of thioamides [1-22] because of their applications in biological systems [23,24], in analytical chemistry [25,26], in environmental toxicology [27], and as precursors for the preparation of CdS nanoparticles [28][29][30]. These structural reports describe that in most of the cases, cadmium(II) complexes exist as neutral monomeric [3][4][5][6][7][8][9][10][11][12][13][14][15][16] or polymeric [17][18][19] molecules of the general formula [CdL 2 X 2 ] with the cadmium atom possessing a tetrahedral or distorted octahedral coordination environment respectively. In some cases, ionic complexes of the type [CdL 4 ]X 2 (X = nitrate or sulfonate) are also formed [21, 22]. Recently, we have reported the crystal structures of two new complexes [Cd(Detu) 4 (SO 4 )] (Detu = N,N′diethylthiourea) [1] and [Cd(Diaz) 2 (CH 3 COO) 2 ] (Diaz = 1,3-diazinane-2-thione) [2] in which cadmium(II) shows severe distortions from the octahedral geometry. In view of our continued interest in the structural chemistry of cadmium(II) complexes with thiones [1-10], we report here the synthesis and crystal structure of a cadmium(II) complex of the heterocyclic ligand 1,3-diazinane-2-thione (3,4,5,6-tetrahydropyrimidine) [Cd(Diaz) 4 ]SO 4 . Experimental. Materials. Cadmium sulfate (CdSO 4 ⋅8/3H 2 O) was obtained from Merck Chemical Company, Germany. Diazinane-2-thione (Diaz) was prepared according to the procedure published in the literature [31].Synthesis of [Cd(Diaz) 4 ]SO 4 (1). The title complex was prepared by adding 0.24 g (2.0 mmol) of Diaz in 15 ml of methanol to an aqueous solution (5 ml) of cadmium sulfate (1.0 mmol, 0.26 g) and stirring the mixture for 30 min. The very light yellow cloudy solution was filtered and the filtrate was kept at room temperature for crystallization. As a result, the offwhite crystalline product was obtained, which was washed with methanol and dried.

show abstract

Synthesis and Structural Characterization of Dibromidobis(N,N′-dimethylthiourea-κS)cadmium(II) and Diiodidobis(N,N′-dimethylthiourea-κS)cadmium(II)

Cited by 15 publications

References 35 publications

Synthesis and Crystal Structures of Cadmium Iodide Complexes of N,N′-Diethylthiourea and 1,3-Diazinane-2-thione

Synthesis and Crystal Structures of Cadmium Iodide Complexes of N,N′-Diethylthiourea and 1,3-Diazinane-2-thione

Synthesis and structural characterization of cadmium(II) complexes of tetramethylthiourea (Tmtu); X-ray structure of [Cd(Tmtu)2Cl2]

Structural characterization of tetrakis(1,3-diazinane-2-thione)cadmium(II) sulfate

Contact Info

Product

Resources

About