Structural characterization and electrochemical properties of the 3,3'-5,5-tetra-tert-butyl-4,4 '-diphenoquinone

TÜMER, MEHMET; ASLANTAŞ, MEHMET; ŞAHİN, Ertan; Deligonul, Nihal

doi:10.1016/j.saa.2007.07.039

Structural characterization and electrochemical properties of the 3,3'-5,5-tetra-tert-butyl-4,4 '-diphenoquinone

Atıf İçin Kopyala

TÜMER M., ASLANTAŞ M., ŞAHİN E., Deligonul N.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, cilt.70, sa.3, ss.477-481, 2008 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 70 Sayı: 3
Basım Tarihi: 2008
Doi Numarası: 10.1016/j.saa.2007.07.039
Dergi Adı: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.477-481
Atatürk Üniversitesi Adresli: Evet

Özet

Crystals of the 3,3'-5,5'-tetra-tert-butyl-4,4'-diphenoquinone (TTBDQ) in the reaction mixture DCM/MeOH (1: 1, v/v) were obtained as a result of C-C coupling reaction of the sterically hindered phenol (2,6-di-tert-butylphenol, DTBP) using the binuclear Co(II) complexes. The oxidation product (TTBDQ), C(28)H(40)O(2), crystallizes in the space group P (1) over bar with one-half molecule in the asymmetric unit and the other half generated by an inversion centre. The diphenoquinone moiety is planar within +/-0.016(3) angstrom. The crystal structure is stabilized by intramolecular C-H center dot center dot center dot O hydrogen bonds. The spectroscopic and electrochemical properties of the TTBDQ also have been studied. (C) 2007 Elsevier B.V. All rights reserved.