Polymorphism induced gas adsorption on naphthalic imide appended phenothiazine for the detection of volatile organic compounds

Selvaraj, K and Marappan, G and Gawas, P and Raviteja, S and Dinesh Kumar, G and Jayaraman Surya, V and Sivalingam, Y and Nutalapati, V (2021) Polymorphism induced gas adsorption on naphthalic imide appended phenothiazine for the detection of volatile organic compounds. In: Materials Letters, 303 .

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Abstract

In this work, we have developed a new polymorphic phase of 2-(4-(10H-phenothiazin-10-yl)phenyl)-1H-benzodeisoquinoline-1,3(2H)-dione(NIPTZ-DM) and compared it with the reported polymeric phase (NIPTZ-C). Single crystal XRD analysis revealed that NIPTZ-C existed in herringbone molecular arrangement and NIPTZ-DM showed a zigzag pattern. The photophysical properties of the two phases in the solid state were explored. The unique crystalline phases were investigated for photo- response behaviour with saturated vapours of volatile organic compounds (VOCs). The gas interaction study was carried with Scanning Kelvin Probe (SKP) system with different VOCs such as acetone, triethylamine (TEA), ethanol, and n-hexane. NIPTZ-DM demonstrated excellent gas response towards acetone vapours and showed a high photo response behaviour. NIPTZ-C exhibits both p-type and n-type behaviour, whereas NIPTZ-DM exhibits only n-type behaviour under UV-light illumination. © 2021 Elsevier B.V.

Item Type:	Journal Article
Publication:	Materials Letters
Publisher:	Elsevier B.V.
Additional Information:	The copyright for this article belongs to Elsevier B.V.
Keywords:	Acetone; Hexane; Insecticides; Polymorphism; Probes; Single crystals; Volatile organic compounds, Isoquinolines; Molecular arrangements; Photoresponses; Polymeric phase; Polymorphic phasis; Response behaviour; Scanning kelvin probe; Single-crystal XRD; Volatile organics; XRD analysis, Gas adsorption
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	24 Sep 2021 07:55
Last Modified:	24 Sep 2021 07:55
URI:	http://eprints.iisc.ac.in/id/eprint/69731

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