서지주요정보
$C_{60}$-트리오스뮴 뭉치화합물 유도체에 관한 연구 = A study of triosmium derivatives of $C_{60}$
서명 / 저자 $C_{60}$-트리오스뮴 뭉치화합물 유도체에 관한 연구 = A study of triosmium derivatives of $C_{60}$ / 송현준.
저자명 송현준 ; Song, Hyun-Joon
발행사항 [대전 : 한국과학기술원, 1996].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8006757

소장위치/청구기호

학술문화관(문화관) 보존서고

MCH 96012

SMS전송

도서상태

이용가능

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반납예정일

초록정보

Dimethylfumarate triosmium clusters, $Os_3(CO)_{10}$(dmf)L [L = CO (1), NCMe (2), $PPh_3$ (3)] have been prepared as model compounds for $C_{60}$ triosmium derivatives, and studied by variable temperature NMR spectroscopy. Fluxionality of 1 reveals a typical rotation of the fumarate ligand. Six isomers are present for 2 which are in a rapid equilibrium. Two molecular structures of the six isomers have been solved by single crystal X-ray diffraction studies. The dmf and MeCN ligands are coordinated to the metal center, and the dmf ligand occupies an equatorial site, whereas the MeCN ligand either an equatorial or axial site. Three isomers exist for 3, and the phosphine and the dmf ligands occupy equatorial sites bonded to the different metal centers. The structures of the $C_{60}$ triosmium derivatives are considered to be similar to those of the dmf triosmium derivatives. Bisphosphine triosmium complexes of $C_{60}$, $Os_3(CO)_9(PMe_3)_2(\eta^2-C_{60})$ [R = Me (4), Et (5)] have been synthesized. These are soluble enough to obtain $^{13}C$ NMR spectrum. VT NMR studies for 4 and 5 reveal a restricted in-plane cyclic motion of equatorial carbonyl and $C_{60}$ ligands via a triply bridged intermediate. The bis adduct $\{Os_3(CO)_9(PMe_3)_2\}_2(\eta^2-C_{60})$ has also been prepared and characterized.

서지기타정보

서지기타정보
청구기호 {MCH 96012
형태사항 iii, 39 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Hyun-Joon Song
지도교수의 한글표기 : 박준택
지도교수의 영문표기 : Joon-T. Park
학위논문 학위논문(석사) - 한국과학기술원 : 화학과,
서지주기 참고문헌 : p. 38-39
주제 $C_{60}$
Fullerene
Triosmium
cluster
풀러렌
트리오스뮴
뭉치화합물
QR CODE qr code