- Size-dependent optical and electrochemical band gaps of ZnS nanorods fabricated through single molecule precursor route
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The colloidal, highly crystalline, and size-controlled ZnS nanorods have been prepared through a thermal decomposition of single-source-precursor approach in oleylamine solution. The length and width of nanorods can be controlled simply by varying the molar ratio of zinc 2-mercaptobenzothiazole complex and oleylamine or prolonging the anneal duration. Optical and electrochemical properties of different sizes of ZnS nanorods are discussed and size-dependent optical and electrochemical band gaps are evidently observed, which show a direct correlation between the electronic spectra and electrochemical band gap.
- Geng,Liu,Ma,Du,Zhang
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- Interaction of Zinc and Cadmium Bis(benzothiazole-2-thiolates) with Nitrogen Bases
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The reactions of polymeric and with pyridine (py), 2,2'-bipyridine (bipy) and 1,10-phenanthroline (phen) lead to the formation of mononuclear adducts which have been characterized by elemental analysis and infrared spectroscopy.The complexes 1, (Zn(C7H4NS2)2(bipy)> 2 and 3 were structurally characterized by X-ray crystallography.Adducts 1 and 2 have distorted-tetrahedral ZnN2S2 cores.The zinc ions are co-ordinated to the two exocyclic S atoms of the benzothiazole-2-thiolates and to two nitrogen atoms from the py or bipy base.The Zn-S and Zn-N bond distances are 2.324(1) and 2.063(4) Angstroem in 1 and 2.310(13) and 2.096(4) Angstroem in 2.The complex was found to be isomorphous to 2.Adduct 3 shows a distorted-octahedral CdN4S2 unit formed by two bidentate S,N benzothiazole-2-thiolates and two cis pyridine nitrogen atoms.The two exocyclic S atoms are located at the axial positions.The mean Cd-S and Cd-N bonds of the bidentate ligands in 3 are 2.706(10) and 2.422(30) Angstroem and the corresponding mean Cd-N(py) is 2.334(4) Angstroem.The infrared spectra of the adducts in the range 650-200 cm-1 are discussed in the light of the known structures.The thermal degradation of complexes 1-3 affords ZnS or CdS.
- Baggio, Ricardo,Garland, Maria Teresa,Perec, Mireille
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- A mercapto thiazole metal compound of the ball mill method for synthesizing
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The invention discloses a ball milling synthesis method of mercaptothiazole type metal compounds as shown in formula (I) and formula (II). The method comprises the steps of adding 2-amino-5-mercapto-1, 3, 4-thiadiazole or 2-mercaptobenzothiazole into a ball milling reactor, further adding a ball body, a metal salt and a solvent to perform ball milling reaction, performing TLC (tracking level control) monitoring, performing post-treatment on a reaction mixture after the end of reaction, adding 2-amino-5-mercapto-1, 3, 4-thiadiazole to obtain the compounds as shown in the formula (I), and adding 2-mercaptobenzothiazole to obtain the compounds as shown in the formula (II). The synthesis method of the mercaptothiazole type metal compounds, provided by the invention, has the advantages of simple process, effect of basically eliminating three wastes and high yield, and is suitable for industrial applications.
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Paragraph 0022-0023
(2017/02/23)
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- Methods for Making Organozinc Salts and Compositions Containing the Same
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Organic zinc salts and mixtures thereof, organic zinc salt coated particles, methods of preparing organic zinc salts and organic zinc salt coated particles, and various applications of such coated particles, including applications in rubber, other polymeric materials, and pesticides and/or fungicides are disclosed.
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Page/Page column 5
(2010/07/08)
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