Mesomorphic Schiff base amine tethered giant gold nanoparticles

ABSTRACT

GNP-LC hybrid incorporating giant gold nanoclusters was accessed with tailor made liquid crystalline Schiff base bearing amine function as reactive end group without using any external reducing agent. The liquid crystal phase (smectic C) of the Schiff base remained unaltered in the hybrid material. The ligand and hybrid both exhibited interesting concentration-dependent fluorescence quenching of 9,10-diphenylanthracene when excited at 345 nm wavelength in dichloromethane solution. The GNP-LC hybrid exhibited reasonably good electrical conductivity showing an Arrhenius-type behaviour in the smectic mesophase and a tunnelling behaviour in the crystalline state.

GRAPHICAL ABSTRACT

KEYWORDS:

• Schiff base
• hybrid
• fluorescence
• conductivity
• mesomorphic

Acknowledgement

Authors are thankful to Sophisticated Analytical Instrument Facility (SAIF), NEHU, Shillong for TEM facilities. ND thanks University Grants Commission (UGC) for fellowship.

Disclosure statement

No potential conflict of interest was reported by the authors.

Supplementary material

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