Acetylthiophene thiosemicarbazone(C4H4S) C (CH3)=NNHC-SNH2-·1/2H2O has been prepared by the condensation of 2-acetylthiophene with thiosemicarbazide. This compound crystallized in monoclinic space group P21/c wi...Acetylthiophene thiosemicarbazone(C4H4S) C (CH3)=NNHC-SNH2-·1/2H2O has been prepared by the condensation of 2-acetylthiophene with thiosemicarbazide. This compound crystallized in monoclinic space group P21/c with unit cell parameters: a = 15. 909 (2) , b = 5 .424 (3)A,β=108. 59 (1)°,V=1989 (1)A 3, Z=8, Dc= 1.391g/cm3, F(000)= 872, λ=0.71073 A,μ(MoKα) = 4. 7 cm-1, final RO= 0.36 for 2852 observed reflections. Analysis of molecular structure reveals that this Schiff base possesses the E-form configuration. Each asymmetric unit contains two thiosemicarbazones and one water molecule which form hydrogen bonds statistically.展开更多
The title compound crystallized in space goups P2(1)/c with Z=4, in a unit cell of dimensions, a=12.964(4), b=5.131(5), c=14.970(1)Angstrom; V=9331(1) Angstrom(3) Dc=1.429gcm(-3), mu=0.541mm(-1), R=0.045, Rw=0.059. Th...The title compound crystallized in space goups P2(1)/c with Z=4, in a unit cell of dimensions, a=12.964(4), b=5.131(5), c=14.970(1)Angstrom; V=9331(1) Angstrom(3) Dc=1.429gcm(-3), mu=0.541mm(-1), R=0.045, Rw=0.059. The equilibrium constant of the ligand with CdBr2 was obtained by polarographic method. Crystal structure determination revealed that the molecule is in transconformation and non-hydrogen atoms of the molecule are in one plane except N(3) atom.展开更多
Nitrobenzaldehyde thiosemicarbazone (C_8H_8N_4O_2S) has been prepared by the condensation of 4-nitrobenzaldehyde with thiosemicarbazide. This compound crystallized in monoclinic space group P2_1/c with the unit cell p...Nitrobenzaldehyde thiosemicarbazone (C_8H_8N_4O_2S) has been prepared by the condensation of 4-nitrobenzaldehyde with thiosemicarbazide. This compound crystallized in monoclinic space group P2_1/c with the unit cell parameters : a =4. 560(2), b=24. 900(4), c=8. 950(2) A, β=98. 37(2)°, V=1005. 2 A ̄3, Z=4,D_c = 1. 482 g/cm ̄3, λ= 0. 71073 A, μ(MoKα)=0. 293 mm ̄(-1) , final R= 0.044 for 1568 observed reflections. Analvsis of molecular structure reveals that the molecule is in trans-configuration. The molecular packing is governed by N-H...S and O... H-N hydrogen bonding interactions.展开更多
文摘Acetylthiophene thiosemicarbazone(C4H4S) C (CH3)=NNHC-SNH2-·1/2H2O has been prepared by the condensation of 2-acetylthiophene with thiosemicarbazide. This compound crystallized in monoclinic space group P21/c with unit cell parameters: a = 15. 909 (2) , b = 5 .424 (3)A,β=108. 59 (1)°,V=1989 (1)A 3, Z=8, Dc= 1.391g/cm3, F(000)= 872, λ=0.71073 A,μ(MoKα) = 4. 7 cm-1, final RO= 0.36 for 2852 observed reflections. Analysis of molecular structure reveals that this Schiff base possesses the E-form configuration. Each asymmetric unit contains two thiosemicarbazones and one water molecule which form hydrogen bonds statistically.
文摘The title compound crystallized in space goups P2(1)/c with Z=4, in a unit cell of dimensions, a=12.964(4), b=5.131(5), c=14.970(1)Angstrom; V=9331(1) Angstrom(3) Dc=1.429gcm(-3), mu=0.541mm(-1), R=0.045, Rw=0.059. The equilibrium constant of the ligand with CdBr2 was obtained by polarographic method. Crystal structure determination revealed that the molecule is in transconformation and non-hydrogen atoms of the molecule are in one plane except N(3) atom.
文摘Nitrobenzaldehyde thiosemicarbazone (C_8H_8N_4O_2S) has been prepared by the condensation of 4-nitrobenzaldehyde with thiosemicarbazide. This compound crystallized in monoclinic space group P2_1/c with the unit cell parameters : a =4. 560(2), b=24. 900(4), c=8. 950(2) A, β=98. 37(2)°, V=1005. 2 A ̄3, Z=4,D_c = 1. 482 g/cm ̄3, λ= 0. 71073 A, μ(MoKα)=0. 293 mm ̄(-1) , final R= 0.044 for 1568 observed reflections. Analvsis of molecular structure reveals that the molecule is in trans-configuration. The molecular packing is governed by N-H...S and O... H-N hydrogen bonding interactions.