Helical metallomacrocyclic nickel(II) complexes of a tetradentate N 2S2 ligand derived from N-methyldithiocarbazic acid

Akbar Ali, Mohammad, Mirza, Aminul Huq, Hamid, Malai Haniti S. A., Siew, Ik Chin, Sia, Lo Pei and Bernhardt, Paul V. (2010) Helical metallomacrocyclic nickel(II) complexes of a tetradentate N 2S2 ligand derived from N-methyldithiocarbazic acid. Inorganic Chemistry Communications, 13 12: 1445-1447. doi:10.1016/j.inoche.2010.08.012


Author Akbar Ali, Mohammad
Mirza, Aminul Huq
Hamid, Malai Haniti S. A.
Siew, Ik Chin
Sia, Lo Pei
Bernhardt, Paul V.
Title Helical metallomacrocyclic nickel(II) complexes of a tetradentate N 2S2 ligand derived from N-methyldithiocarbazic acid
Journal name Inorganic Chemistry Communications   Check publisher's open access policy
ISSN 1387-7003
1879-0259
Publication date 2010
Sub-type Article (original research)
DOI 10.1016/j.inoche.2010.08.012
Volume 13
Issue 12
Start page 1445
End page 1447
Total pages 3
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Abstract The structure of the tetradentate sulphur-nitrogen chelating agent, 1,2-phenylenebis(methylene) bis(1-methylhydrazinecarbodithioate) (NSSN) has been determined by X-ray diffraction. In the solid state, the two arms of the ligand remain in E configurations about the hydrazinic C-N bonds. The ligand reacts with hydrated nickel(II) salts in a 3:2 ligand-to-metal ratio yielding dimeric triple helical complexes of general formula, [Ni2(NSSN) 3]X4•nH2O (X = Cl, Br, I, NCS; n = 5, 6, 9) which contain two nickel(II) ions in distorted octahedral environments. An X-ray crystallographic structure determination of the [Ni2(NSSN) 3]Cl4•9H2O complex shows that it is a metallomacrocycle in which each ligand acts as a bis-bidentate chelating agent providing NS donors of one arm to one nickel(II) ion and NS donors of the second arm to a second nickel(II) ion. Each nickel(II) ion adopts a distorted octahedral geometry with a NiN3S3 coordination core as shown by their common electronic spectra.
Keyword Metallomacrocycle
Nickel(II) complex
Tetradentate chelating agent
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemistry and Molecular Biosciences
 
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