Citation: ZHANG Hong-Wei, YIN Zhen-Ming. Syntheses and Crystal Structures of Monoand Bis-3-pyridinyldiazo-dipyrromethane[J]. Chinese Journal of Structural Chemistry, ;2014, 33(12): 1813-1818. doi: 10.14102/j.cnki.0254-5861.2011-0389 shu

Syntheses and Crystal Structures of Monoand Bis-3-pyridinyldiazo-dipyrromethane

ZHANG Hong-Wei ^a,b ,
YIN Zhen-Ming ^a,b,,

a.
a. College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecule, Tianjin Normal University, Tianjin 300387, China;
b.
b. Key Laboratory of Inorganic-organic Hybrid Functional Material Chemistry(Tianjin Normal University), Ministry of Education, Tianjin Normal University, Tianjin 300387, China

Corresponding author: YIN Zhen-Ming,
Received Date: 27 May 2014
Available Online: 3 September 2014
Fund Project: The program was supported by the National Natural Science Foundation of China (No. 21172174) (No. 21172174)Innovation Foundation of Tianjin Normal University (52XC1101) (52XC1101)

Two azopyrrole compounds, 1 and 2, have been synthesized and characterized. The crystal of compound 1 is of triclinic, space group P1, with a=6.5632(10), b=7.0805(10), c=17.436(3)Å, α=89.504(2), β=79.460(2), γ=84.2788(2)°, V=792.6(2)Å³, Z=2, C₁₈H₂₁N₅, M_r=307.40, D_c=1.288 g/cm, F(000)=328 and μ(MoKα)=0.080 mm^-1. The crystal of compound 2 is of triclinic, space group P1, with a=9.7324(8), b=9.9779(8), c=12.3817(11)Å, α=87.052(2), β=71.766(2), γ=70.968(2)°, V=1077.86(16)Å³, Z=2, C₂₃N₂₄H₈, M_r=412.5, D_c=1.271 g/cm, F(000)=436 and μ(MoKα)=0.081 mm^-1. The molecules of compounds 1 and 2 prefer to form dimers through pairs of N-H…N hydrogen bonds between pyrrole NH groups and pyridine N atoms. In addition, in the crystal of compound 2, the dimers self-assemble into a layer structure through N-H…N hydrogen bonds between pyrrole NH groups and azo N atoms as well as C-H…N hydrogen bonds between the ethyl groups and pyridine N atoms.
- azopyrrole,
- heterocyclic,
- hydrogen bonds
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