Hofmann type clathrates -: spectroscopic studies of the low frequency region

Minceva-Sukarova B., Andreeva L., AKYÜZ S.

JOURNAL OF MOLECULAR STRUCTURE, cilt.834, ss.48-56, 2007 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 834
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1016/j.molstruc.2006.12.009
  • Dergi Adı: JOURNAL OF MOLECULAR STRUCTURE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.48-56
  • İstanbul Kültür Üniversitesi Adresli: Hayır

Özet

A series of Hofmann type clathrates with a general formula: M(NH3)(2)M'(CN)(4)center dot 2G, where M is an element of {Ni, Mn, Cd}, M' is an element of {Ni, Pd}, while G is benzene or thiophene, were prepared and their Raman and far-infrared spectra were recorded in the region 650-50 cm(-1). The main bands of the vibrational spectra in the low frequency region were assigned to the stretching and deformational vibrations: v(Ni-C)/v(Pd-C), delta(NiCN)/delta(PdCN), pi(NiCN)/pi(PdCN), delta(CNiC)/delta(CPdC), v(M-N) and delta(NMN) originating from the host lattices: M(NH3)(2)Ni(CN)(4) or M(NH3)(2)Pd(CN)(4). The Raman and far-infrared spectra of the studied Hofmann type clathrates were compared with the corresponding spectra of K2Ni(CN)(4) and K2Pd(CN)(4) as well as with Ni(NH3)(6)Cl-2, and in some cases, with the spectra of the "empty" clathrates. (C) 2007 Elsevier B.V. All rights reserved.