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Citation: HE Jianyun, HUANG Jie, SONG Jirong, ZHAO Yisha, MA Cong, XU Kangzhen. Synthesis,Crystal Structure,Specific Heat Capacity and Thermodynamic Properties of N-(Ethoxycarbonyl acyl)-N'-(2,4-dinitrophenyl amino) Thiourea[J]. Chinese Journal of Applied Chemistry, ;2013, 30(7): 782-788. doi: 10.3724/SP.J.1095.2013.20401 shu

Synthesis,Crystal Structure,Specific Heat Capacity and Thermodynamic Properties of N-(Ethoxycarbonyl acyl)-N'-(2,4-dinitrophenyl amino) Thiourea

HE Jianyun ^a, ,
HUANG Jie ^a ,
SONG Jirong ^a,b ,
ZHAO Yisha ^a ,
MA Cong ^a ,
XU Kangzhen ^a

a. Department of Chemical Engineering/Shanxi Key Laboratory of Physico-Inorganic Chemistry, Northwest University, Xi'an 710069, China;
b. Conservation Technology Department, the Palace Museum, Beijing 100009, China

Received Date: 12 September 2012
Revised Date: 22 November 2012

N-(Ethoxycarbonyl acyl)-N'-(2,4-dinitrophenyl amino) thiourea was synthesized using 2,4dinitrophenylhydrazine,potassium thiocyanate and ethyl chloroformate as precursors in ethyl acetate in the presence of Macrogol-400 catalyst. The structure was characterized by elemental analysis and FI-IR. Single crystal of the title compound was obtained by slowly evaporating solvents at the room temperature. The crystal structure was determined with single crystal X-ray diffractometer. Crystal data are:monoclinic,P2(1)/c space group,a=4.1919(2) nm,b=12.295(6) nm,c=23.828(11) nm,α=γ=90.00°,β=92.467(10)°,V=1439.7(12),D_c=1.519 g/cm³,μ=0.263 cm^-1,F(000)=680,Z=4,R₁=0.1121,wR₂=0.2540. The thermal behavior of the title compound was studied under a non-isothermal condition by DSC method. The specific heat capacity of the title compound was determined with continuous C_p mode of mircocalorimeter. The structure analysis and thermodynamic properties proved that the title compound has good stability,which is good for transportation and storage.
- synthesis,
- X-ray diffraction,
- crystal structure,
- specific heat capacity,
- thermodynamic properties
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