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Spectroscopic and Thermodynamic Studies of charge Transfer Complexes for 7,7,8,8-tetracyanoquinodimethane(TCNQ) and Some Organic Telluride compounds
دراسه طيفيه وثرموديناميكيه لمعقدات انتقال الشحنه بين رباعي سيانو-كوينوثنائي ميثان(TCNQ) وبعض التلوريدات العضويه

Author: Layla Jasim Abbas ليلى جاسم عباس
Journal: Journal of Basrah Researches (Sciences) مجلة ابحاث البصرة ( العلميات) ISSN: 18172695 Year: 2014 Volume: 40 Issue: 2A Pages: 58-67
Publisher: Basrah University جامعة البصرة

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Abstract

The Charge Transfer complexes(CTC) between 7,7,8,8-tetracyanoquinodimethane (TCNQ) and some tellurium compounds have been investigated spectrophotometrically in the UV-Visible region. The values of energies of transition , ionization potential (IP),and the dissociation energies of charge transfer (CT). complexes excited state(w) of these complexes have been calculated and were in the range of 9.96 - 9.35 ev.The charge transfer parameters of the tellurium compounds as a donor with TCNQ as accepter which is represented by ECT. ,KCT. ,Δ G وΔ H, and Δ S ,have been estimated .The data was analyzed using Bensi- Hildebrand equation ,from which the formation of 1:1 charge transfer complex was concluded.

درس تكوين معقدات نقل الشحنة بين رباعي سيانو-كوينوثنائي ميثان وبعض التلوريدات العضوية طيفيا في المنطقة الفوق بنفسجيه- المرئيه وحسبت قيم طاقه الانتقال وجهد التأين وثابت التفكك وطاقه الاثاره لتلك المعقدات وكانت تتراوح بين (9.96 - 9.35) .كذلك قدرت قيم معاملات نقل الشحنه والمتمثله ب لمركبات التلريوم كواهب مع ECT. , KCT , Δ G, Δ H, Δ S كمستقبل بنسبه 1:1 TCNQوحللت ا لبيانات باستخدام معادله بنسي –هلدبراند

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