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Hapipah Mohd Ali

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Articles 1 - 4 of 4

Full-Text Articles in Life Sciences

Dichlorido{N,N-Dimethyl-N '- 1-(2-Pyridyl)Ethylidene Ethane-1,2-Diamine-Kappa N-3,N ',N ''}Copper(Ii), Hapipah Mohd Ali, Salga M. S., Khaledi H., Puteh R. Jan 2010

Dichlorido{N,N-Dimethyl-N '- 1-(2-Pyridyl)Ethylidene Ethane-1,2-Diamine-Kappa N-3,N ',N ''}Copper(Ii), Hapipah Mohd Ali, Salga M. S., Khaledi H., Puteh R.

Hapipah Mohd Ali

In the title compound, [CuCl2(C11H17N3)], the Cu-II ion is five-coordinated with a distorted square-pyramidal configuration. The three N atoms of the Schiff base ligand and one Cl atom are located in the basal plane, whereas the other Cl atom is apically positioned.


N '-(5-Chloro-2-Oxidobenzylidene-Kappa O)-3-Hydroxy-2-Naphthohydrazidato-Kappa N-2 ',O Dimethyltin(Iv), Hapipah Mohd Ali, Lee S. M., Lo K. M., Ng S. W. Jan 2009

N '-(5-Chloro-2-Oxidobenzylidene-Kappa O)-3-Hydroxy-2-Naphthohydrazidato-Kappa N-2 ',O Dimethyltin(Iv), Hapipah Mohd Ali, Lee S. M., Lo K. M., Ng S. W.

Hapipah Mohd Ali

The Sn-IV atom in the title compound, [Sn(CH3)(2)-(C18H11ClN2O3)], shows a trans-C2NO2Sn trigonal-bipyramidal coordination; the axial O-Sn-O angle is 155.22 (5)degrees. The tridentate N'-(5-chloro-2-oxidobenzylidene)-3-hydroxy2-naphthohydrazidate dianion is stabilized by an intramolecular O-H center dot center dot center dot N hydrogen bond.


N '-5-Chloro-2-Oxidobenzylidene-Kappa O)-3-Hydroxy-2-Naphthohydrazidato-Kappa N-2 ',O-2 Diphenyltin(Iv), Hapipah Mohd Ali, Lee S. M., Lo K. M., Ng S. W. Jan 2009

N '-5-Chloro-2-Oxidobenzylidene-Kappa O)-3-Hydroxy-2-Naphthohydrazidato-Kappa N-2 ',O-2 Diphenyltin(Iv), Hapipah Mohd Ali, Lee S. M., Lo K. M., Ng S. W.

Hapipah Mohd Ali

The Sn-IV atom in the title compound, [Sn(C6H5)(2)(C18H11ClN2O3)], is O,N,O'-chelated by the deprotonated Schiff base ligand and further bonded by two phenyl rings in a distorted cis-C2SnNO2 trigonal-bipyramidal geometry [C-Sn-C = 125.7 (2)degrees]. The two phenyl rings are oriented at a dihedral angle of 55.2 (3)degrees. Intramolecular O-H center dot center dot center dot N hydrogen bonding is present in the crystal structure.


N '-(5-Bromo-1h-Indol-3-Ylmethylidene)-3,4,5-Trihydroxybenzohydrazide, Hapipah Mohd Ali, Khaledi H., Ng S. W. Jan 2008

N '-(5-Bromo-1h-Indol-3-Ylmethylidene)-3,4,5-Trihydroxybenzohydrazide, Hapipah Mohd Ali, Khaledi H., Ng S. W.

Hapipah Mohd Ali

The two aromatic parts of the title molecule, C(16)H(12)BrN(3)O(4), are connected through a conjugated -CH=N-NH-C(O)- fragment to furnish an almost planar molecule. Adjacent molecules are linked by N-H center dot center dot center dot O and O-H center dot center dot center dot O hydrogen bonds into a three-dimensional network. An intramolecular O-H center dot center dot center dot O link also occurs.