Molecules 2003, 8(2), 269-274; doi:10.3390/80200269
Article

Crystal Structure of N,N,N’,N’-tetra-[(3,5-dimethyl-1-pyrazolyl) methyl]-para-phenylenediamine

Maria Daoudi 1 , Najib Ben Larbi 1 , Driss Benjelloun 1 , Abdelali Kerbal 1 , Jean Pierre Launay 2 , Jacques Bonvoisin 2 , Joël Jaud 2 , Mostafa Mimouni 3  and Taibi Ben-Hadda 1,3,* email
1 Département de Chimie, Faculté des Sciences Dhar El Mehraz, 30000 Fès, Morocco 2 CEMES, CNRS, 29, rue Jeanne Marvig, 31055 Toulouse Cedex 04, France 3 Département de Chimie, Faculté des Sciences, 60000 Oujda, Morocco
* Author to whom correspondence should be addressed.
Received: 27 May 2002; in revised form: 10 February 2003 / Accepted: 17 February 2003 / Published: 28 February 2003
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Abstract: The title compound, molecular formula C30H40N10, crystallizes and exhibits a cisoidal conformation around a central p-phenylenediamine ring suggesting that this bis-tripodal ligand is highly flexible and could be accommodated by many and original metal coordinations. All four five-membered pyrazole rings are identical. The molecule presents an inversion centre that coincides with the phenyl ring centre: pyrazole rings are two-by-two equivalent. The electrostatic spatial intramolecular repulsion between N4 and N5 is probably responsible for this general arrangement. These data emphasize the basic character of nitrogens N4 and N5.
Keywords: Structure; bis-tripod; pyrazole; bis-tridentate; N-ligands; condensation; diamines; flexibility; molecular wires

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MDPI and ACS Style

Daoudi, M.; Larbi, N.B.; Benjelloun, D.; Kerbal, A.; Launay, J.P.; Bonvoisin, J.; Jaud, J.; Mimouni, M.; Ben-Hadda, T. Crystal Structure of N,N,N’,N’-tetra-[(3,5-dimethyl-1-pyrazolyl) methyl]-para-phenylenediamine. Molecules 2003, 8, 269-274.

AMA Style

Daoudi M, Larbi NB, Benjelloun D, Kerbal A, Launay JP, Bonvoisin J, Jaud J, Mimouni M, Ben-Hadda T. Crystal Structure of N,N,N’,N’-tetra-[(3,5-dimethyl-1-pyrazolyl) methyl]-para-phenylenediamine. Molecules. 2003; 8(2):269-274.

Chicago/Turabian Style

Daoudi, Maria; Larbi, Najib B.; Benjelloun, Driss; Kerbal, Abdelali; Launay, Jean P.; Bonvoisin, Jacques; Jaud, Joël; Mimouni, Mostafa; Ben-Hadda, Taibi. 2003. "Crystal Structure of N,N,N’,N’-tetra-[(3,5-dimethyl-1-pyrazolyl) methyl]-para-phenylenediamine." Molecules 8, no. 2: 269-274.

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