Synthesis and structure of penta-platinum sigma-bonded derivatives of corannulene

Choi, Hyunbong; Kim, Chulwoo; Park, Ki-Min; Kim, Jinho; Kang, Youngjin; Ko, Jaejung

doi:10.1016/j.jorganchem.2009.07.015

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Synthesis and structure of penta-platinum sigma-bonded derivatives of corannulene

Choi, Hyunbong;
Kim, Chulwoo;
Park, Ki-Min;
Kim, Jinho;
Kang, Youngjin;
외 1명

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초록

The synthesis of a new class of Pt(II) complexes with corannulene by way of either oxidative addition or reductive coupling is reported and their crystal structures are investigated. The crystal structure for {trans-Pt(PEt3)(2)Cl}(4){cis-Pt(PEt3)(2)Cl}C20H5 (1) consists of two enantiomers in a unit cell and shows cis- and trans-configuration around Pt(II) due to bulky PEt3 ligands. The pentanuclear Pt(II) complex, 1, readily reacts with 1-ethynyl-4-nitrobenzene to afford the penta-alkynyl substituted Pt(II) complex (2). Although there are still bulky PEt3 ligands around the Pt atoms in 2, all five Pt(II) have trans-configurations. The bowl of corannulene in 2 is shallower than that of 1. Therefore, the bowl depth of corannulene plays a key role in the determination of molecular geometry of sigma-bonded pentanuclear complexes bearing corannulene. (C) 2009 Elsevier B. V. All rights reserved.

키워드

Corannulene; Oxidative addition; X-ray structure; NORMAL-COORDINATE CALCULATIONS; PHASE MOLECULAR-STRUCTURE; TO-BOWL INVERSION; ELECTRON-DIFFRACTION; GEODESIC POLYARENE; AB-INITIO; BUCKYBOWL; FULLERENES; COMPLEX; BARRIER

제목: Synthesis and structure of penta-platinum sigma-bonded derivatives of corannulene

저자: Choi, Hyunbong; Kim, Chulwoo; Park, Ki-Min; Kim, Jinho; Kang, Youngjin; Ko, Jaejung

DOI: 10.1016/j.jorganchem.2009.07.015

발행일: 2009-10-15

유형: Article

저널명: Journal of Organometallic Chemistry

권: 694

호: 22

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