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.
Highlights
Polydentate pyrazole compounds are known and interesting as promising ligands for the building of polynuclear complexes as models for bioinorganic systems [1] as well as for the discovery of new Molecules 2003, 8 catalyst precursors [2]
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
The molecule presents an inversion centre that coincides with the phenyl ring centre: pyrazole rings are two-by-two equivalent
Summary
Polydentate pyrazole compounds are known and interesting as promising ligands for the building of polynuclear complexes as models for bioinorganic systems [1] as well as for the discovery of new Molecules 2003, 8 catalyst precursors [2]. 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.
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