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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 29, Number 3
BKCSDE 29(3)
March 20, 2008 

 
Title
X-ray Crystal Structure and Luminescence Properties of Pd(II) and Pt(II) Complexes with Dithiopyrrole
Author
Jun-Gill Kang*, Dong-Hee Cho, Changmoon Park, Sung Kwon Kang, In Tae Kim*, Sang Woo Lee, Ha Hyeong Lee, Young Nam Lee, Dae Won Lim, Sung Jae Lee, Sung Ho Kim, Young Ju Bae
Keywords
Pt(II) bis(methylthio)pyrrole, Pd(II) bis(methylthio)pyrrole, X-ray structure, Luminescence
Abstract
The complexes Pd(nbmtp)Cl2 and Pt(nbmtp)Cl2 (nbmptp = 1-nonyl-3,4-bis(methylthio)pyrrole) were prepared and their x-ray structures were determined at room temperature. The four-coordinated metal unit and the pyrrole ring formed a nearly planar geometry. The free ligand dissolved in CH2Cl2 produced two luminescence bands associated with the lone-pair electron of S (λmax = 525 nm) and the pyrrole π electron (λmax = 388 nm). When the two complexes were dissolved in CH2Cl2, these two luminescence bands were also observed, although the low-energy band was blueshifted. For the crystalline Pt(II) complex, only the strong charge transfer band (λmax = 618 nm) from the d* orbital of Pt resulted from excitation of the lone-pair electron of S.
Page
599 - 603
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