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Enis Nadia Md Yusof
University of Newcastle
Hydrogen bondCrystal structureChemistryStereochemistryLigand
12Publications
3H-index
45Citations
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Publications 14
Newest
#1Enis Nadia Md Yusof (University of Newcastle)H-Index: 3
#2Muhammad Alif Mohammad Latif (UPM: Universiti Putra Malaysia)H-Index: 6
Last. Thahira Begum S. A. Ravoof (UPM: Universiti Putra Malaysia)H-Index: 9
view all 8 authors...
Abstract Six new tin(IV) compounds derived from tridentate dinegatively charged ONS dithiocarbazate Schiff bases derived from 2-hydroxy-3-methoxybenzaldehyde (H2L1, H2L2 and H2L3) and 2,3-dihydroxybenzaldehyde (H2L4, H2L5 and H2L6) (where H2Ln = di-acids of Schiff base) are reported. The compounds were characterised by elemental analysis, FT-IR and multinuclear NMR (1H, 13C and 119Sn) spectroscopy. The crystal structures of tin(IV) [S-4-methybenzyl-β-N-(2-hydroxy-3-methoxybenzylmethylene)dithioc...
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A series of tridentate ONS Schiff bases were synthesised via condensation by reacting 2,3-dihydroxybenzaldehyde with S-2-methylbenzyldithiocarbazate (S2MBDTC) (1), S-4-methylbenzyldithiocarbazate (S4MBDTC) (2) and S-benzyldithiocarbazate (SBDTC) (3) in an equimolar ratio (10 mmol). The Schiff bases were then reacted with diphenyltin(IV) and dimethyltin(IV) dichloride in an equimolar ratio (1 mmol) yielding six new organotin(IV) compounds (4–9). All the compounds were successfully characterised b...
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#1Enis Nadia Md Yusof (University of Newcastle)H-Index: 3
#2Nazhirah Muhammad Nasri (UPM: Universiti Putra Malaysia)
Last. Edward R. T. Tiekink (Sunway University)H-Index: 53
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The title CuII complex, [Cu(C13H11N2OS2)2], features a trans-N2S2 donor set as a result of the CuII atom being located on a crystallographic centre of inversion and being coordinated by thiol­ate-S and imine-N atoms derived from two di­thio­carbazate anions. The resulting geometry is distorted square-planar. In the crystal, π(chelate ring)–π(fur­yl) [inter-centroid separation = 3.6950 (14) A and angle of inclination = 5.33 (13)°] and phenyl-C—H⋯π(phen­yl) inter­actions sustain supra­molecular la...
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The title NiII complex, Ni(L)(LH2) (1), where LH2 is S-2-methybenzyl-β-N-(2-hydroxy-3-methoxybenzylmethylene) dithiocarbazate, was isolated from the reaction of Ni(acetate)2·4H2O and two molar equivalents of LH2. The complex was characterized by elemental analysis, spectroscopy (IR and UV) as well as by a single-crystal X-ray structure determination. The nickel(II) center is coordinated within a cis-NOS2 donor set that defines a square planar geometry. Three donor atoms, i.e., N, O, and S, are p...
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Six new organotin(IV) compounds of Schiff bases derived from S-R-dithiocarbazate [R = benzyl (B), 2- or 4-methylbenzyl (2M and 4M, respectively)] condensed with 2-hydroxy-3-methoxybenzaldehyde (oVa) were synthesised and characterised by elemental analysis, various spectroscopic techniques including infrared, UV-vis, multinuclear (1H, 13C, 119Sn) NMR and mass spectrometry, and single crystal X-ray diffraction. The organotin(IV) compounds were synthesised from the reaction of Ph2SnCl2 or Me2SnCl2 ...
3 CitationsSource
#1Enis Nadia Md Yusof (University of Newcastle)H-Index: 3
#2Edward R. T. Tiekink (Sunway University)H-Index: 53
Last. Thahira Begum S. A. Ravoof (UPM: Universiti Putra Malaysia)H-Index: 9
view all 6 authors...
Abstract A light-yellow crystalline product (1), which was isolated after one week from the filtrate of the reaction between S-2-methylbenzyldithiocarbazate and 2,3-dihydroxybenzaldehyde, was characterised by single crystal X-ray diffraction, FTIR and NMR spectroscopic analyses. The experimental molecular structure of 1 has been established by X-ray crystallography and showed, to a first approximation, a planar C2N2S2 + dihydroxyphenyl region that has an almost orthogonal relationship to the rin...
1 CitationsSource
#1Nur Shuhada Mohd Mokhtaruddin (UPM: Universiti Putra Malaysia)H-Index: 1
#2Enis Nadia Md Yusof (UPM: Universiti Putra Malaysia)H-Index: 3
Last. Mohamed Ibrahim Mohamed Tahir (UPM: Universiti Putra Malaysia)H-Index: 8
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Abstract Three tridentate Schiff bases containing N and S donor atoms were synthesized via the condensation reaction between S-2-methylbenzyldithiocarbazate with 2-acetyl-4-methylpyridine (S2APH); 4-methyl-3-thiosemicarbazide with 2-acetylpyridine (MT2APH) and 4-ethyl-3-thiosemicarbazide with 2-acetylpyridine (ET2APH). Three new, binuclear and mixed-ligand copper(II) complexes with the general formula, [Cu(sac)(L)]2 (sac = saccharinate anion; L = anion of the Schiff base) were then synthesized, ...
6 CitationsSource
#1Enis Nadia Md Yusof (UPM: Universiti Putra Malaysia)H-Index: 3
#2Mohamed Ibrahim Mohamed Tahir (UPM: Universiti Putra Malaysia)H-Index: 8
Last. Edward R. T. Tiekink (Sunway University)H-Index: 53
view all 5 authors...
The title di­thio­carbazate ester (I), C18H18N2S2 [systematic name: (E)-4-methyl­benzyl 2-[(E)-3-phenyl­allyl­idene]hydrazinecarbodi­thio­ate, comprises an almost planar central CN2S2 residue [r.m.s. deviation = 0.0131 A]. The methyl­ene(tolyl-4) group forms a dihedral angle of 72.25 (4)° with the best plane through the remaining non-hydrogen atoms [r.m.s. deviation = 0.0586 A] so the mol­ecule approximates mirror symmetry with the 4-tolyl group bis­ected by the plane. The configuration about bo...
1 CitationsSource
#1Enis Nadia Md Yusof (UPM: Universiti Putra Malaysia)H-Index: 3
#2Thahira Begum S. A. Ravoof (UPM: Universiti Putra Malaysia)H-Index: 9
Last. Edward R. T. Tiekink (Sunway University)H-Index: 53
view all 5 authors...
The complete mol­ecule of the title hydrazine carbodi­thio­ate complex, [Ni(C19H21N2S2)2], is generated by the application of a centre of inversion. The NiII atom is N,S-chelated by two hydrazinecarbodi­thio­ate ligands, which provide a trans-N2S2 donor set that defines a distorted square-planar geometry. The conformation of the five-membered chelate ring is an envelope with the NiII atom being the flap atom. In the crystal, p-tolyl-C—H⋯π(benzene-iPr), iPr-C—H⋯π(p-tol­yl) and π–π inter­actions [...
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#1Enis Nadia Md Yusof (UPM: Universiti Putra Malaysia)H-Index: 3
#2Mukesh M. JotaniH-Index: 7
Last. Thahira Begum S. A. Ravoof (UPM: Universiti Putra Malaysia)H-Index: 9
view all 4 authors...
The title di­thio­carbazate ester, C16H16N2O2S2, comprises two almost planar residues, i.e. the phenyl ring and the remaining 14 non-H atoms (r.m.s. deviation = 0.0410 A). These are orientated perpendicularly, forming a dihedral angle of 82.72 (5)°. An intra­molecular hy­droxy-O—H⋯N(imine) hydrogen bond, leading to an S(6) loop, is noted. An analysis of the geometric parameters is consistent with the mol­ecule existing as the thione tautomer, and the conformation about the C=N bond is E. The thi...
3 CitationsSource
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