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Please use this identifier to cite or link to this item:
http://ntur.lib.ntu.edu.tw/handle/246246/2006111501233248
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| Title: | Syntheses and structures of some coordinatively saturated and unsaturated diruthenium carbonyl complexes |
| Authors: | Shiu, Kom-Bei;Chen, Jiun-Yu;Lee, Gene-Hsiang;Liao, Fen-Ling;Ko, Bao-Tsan;Wang, Yu;Wang, Sue-Lein;Lin, Chu-Chieh |
| Contributors: | Instrument Center, National Taiwan University |
| Keywords: | Ruthenium;Carbonyl;Coordinatively unsaturated adducts |
| Date: | 2002 |
| Issue Date: | 2006-11-15 |
| Abstract: | Reaction of [Ru2(CO)4(m-DPPM)2(m-OAc)][PF6] (1) with Et3OBF4 in MeCN produced coordinatively saturated [Ru2(m- CO)2(m-DPPM)2(MeCN)4][BF4]2 (2). Upon addition of an excess amount of a uni-negative anion X to a solution of 2 in MeCN, a series of neutral, coordinatively unsaturated adducts [Ru2(m-CO)2(m-DPPM)2X2] (X/Cl, 3a; Br, 3b; I, 3c; SH, 3d; Stol, 3e; SiPr, 3f) were readily formed. The reaction of 3a with trimethylamine N-oxide dihydrate produced two isomeric products of [Ru2(CO)2(m-DPPM)2Cl2(m-H)(m-OH)] at a ratio of 4a/4b/2.25. Treatment of 3b & 3c with dimethyl acetylenedicarboxylate produced [Ru2(m-CO)(m-DPPM)2(m-MeO2CCCCO2Me)X2] (X/Br, 5a; I, 5b), whereas treating of 3e & 3f with I2 yielded [Ru2(CO)2(m-DPPM)2I2(m-I)(m-SR)] (R/tol, 6a; i Pr, 6b). The structures of 2, 3a, 3c, 3e, 4b, 5a & 6a were determined by X-ray crystallography. The observed Ru/Ru distances are compared & explained in terms of both electronic & steric effects by considering the multiple metal/ligand (M/X) bonding interactions & Alvarez’s structural parameters including M/M/X pyramidal angles & the X/M/M/X torsional angles. |
| Relation: | Journal of Organometallic Chemistry 658,117-125 |
| Appears in Collections: | [貴重儀器中心] 期刊論文
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