研究生: |
劉秋蒞 |
---|---|
論文名稱: |
含氮、磷多牙團配子VIB金屬羰基錯合物的合成及結構研究-Mo2(CO)8(trien) Mo2(CO)8(C10H26N4) Mo2(CO)9(C7H19N3) fac-W(CO)3(η1-dppe)(η2-dppe) fac-Mo(CO)3(η1-dppe)(η2-dppe) |
指導教授: | 翁春和 |
學位類別: |
碩士 Master |
系所名稱: |
化學系 Department of Chemistry |
畢業學年度: | 82 |
語文別: | 中文 |
論文頁數: | 131 |
中文關鍵詞: | 金屬羰基 |
英文關鍵詞: | VIB |
論文種類: | 學術論文 |
相關次數: | 點閱:169 下載:0 |
分享至: |
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
本論文主要是利用含氮多牙配子,三乙烯基四胺,N, N'-雙三胺丙基丁二胺等,及含磷雙牙團配子,1, 2-雙二苯膦乙烷和VIB族羰基金屬(鉬,鎢)在正癸烷或四氫喃溶劑中,合成含羰基零價金錯合物。並依據錯合物的紅外吸收光譜及元素分析等,作結構組成之鑑定。其中得到單晶的錯合物有(1)[Mo2(CO)8(trien)], (trien=H2N-(CH2)2-NH-(CH2)2-NH-(CH2)2-NH2); (2)[Mo2(CO)8(C10H26N4)], (C10H26N4=H2N-(CH2)3-NH-(CH2)4-NH-(CH2)3-NH2); (3) [Mo2(CO)9(C7H19N3)], (C7H19N3=H2N-CH2)3-NH-(CH2)4-NH2); (4) [fac-W(CO)3(η1-dppe(O))(η2-dppe)], (dppe=PPh2-(CH2); (4) [FAC-W(CO)3(η1-dppe(O))(η2-dppe)], (dppe=PPh2-(CH2)2-PPh2; (5) [fac-Mo(CO)3(η1-dppe)(η2-dppe)]等五種,以X-ray繞法完成其結構解析。
淡黃色的錯合物(1)晶體為單斜晶系(Monoclinic),空間群為P21/c, a=14.102 (3),b=10.963 (2),c=14.517 (2)A, V=2038.8 (6)A3, β=114.70 (1) , Z=4, Rf=0.033, Rw=0.031結構為雙核雙鉗事五環形式。
黃色的錯合物(2)晶體為三斜晶系(Triclinic),空間群為P-1, a=8.478 (3), b=11.921 (2), c=13.920 (3)A, V=1239.8 (6)A3, α=92.91 (2),β=114.69 (2),γ=103.59 (2)Z=2, Rf=0.048, Rw=0.043.錯合物(2)是雙核雙鉗合六環形式。
黃色的錯合物(3)晶體為三斜晶系(Triclinic),空間群為P-1, a=8.006 (4), b=11.244(9), c=12.670 (3)A,V=1134.9 (1)A3,α=88.66 (4),β=85.76 (3),γ=87.20 (3)0,Z=2,Rf=0.046, Rw=0.048.錯合物(3)是一鉗合環一橋鍵的雙核結構。
黃色的錯合物(4)晶體為單斜晶系(Monoclinic),空間群為P21/c, a=9.776 (4),b=19.219 (6),c=26.032 (1)A, V=4859 (3)A3, β=96.56 (3)0, Z=4,Rf=0.034, Rw=0.031.錯合物(4)是一鉗合環及一懸吊式的單核結構。
淺黃色的錯合物(5)晶體為單斜晶系(Monoclinic),空間群為P21/a, a=9.797 (2),b=19.296 (3), c=26.015 (2)A, V=4871 (1)A3,β=96.92 (3)0, Z=4, Rf=0.088, Rw=0.094。錯合物(5)為三取代單核錯合物。
Metal carbonyl derivatives were synthesized by reactions of the VIB metal hexacarbonyls with polydentate nitrogen ligand, triethylenetetramine, N, N'-bis (3-aminopropyl) butane-1, 4-diamine, 1, 1, 4, 7, 7-pentamethyltriethylenetetramine and 1, 2-bis (diphenyl-phosphino) ethane (dppe) in refluxed n-decane or tetrahydrofuran (THF) and were identified by infrared spectra and elemental analysis. Among them, crystal structures of (1)[Mo2(CO)8(trien)], (trien=H2N-(CH2)2-NH-(CH2)2-NH-(CH2)2-NH2); (2)[Mo2(CO)8(C10H26N4)], (C10H26N4=H2N-(CH2)3-NH-(CH2)4-NH-(CH2)3-NH2); (3) [Mo2(CO)9(C7H19N3)], (C7H19N3=H2N-CH2)3-NH-(CH2)4-NH2); (4) [fac-W(CO)3(η1-dppe(O))(η2-dppe)], (dppe=PPh2-(CH2); (4) [FAC-W(CO)3(η1-dppe(O))(η2-dppe)], (dppe=PPh2-(CH2)2-PPh2; (5) [fac-Mo(CO)3(η1-dppe)(η2-dppe)] have been undertaken by X-ray diffraction method.
Light yellow crystals of (1) are monoclinic space group P21/c, a=14.102 (3), b=10.963 (2), c=14.517 (2)A, V=2038.8 (6), β=114.70 (1) Z=4.Final R values are Rf=0.033, Rw=0.031. The ligands (trien) were coordinated to metals to form two fivemembered chelating rings.
Yellow crystals of (2) are triclinic space group P-1 with , a=8.478 (3), b=11.921 (2), c=13.920 (3)A, V=1239.8 (6)A3, α=92.91 (2),β=114.69 (2),γ=103.59 (2)Z=2. Final R values are Rf=0.048, Rw=0.043. The dinuclear complex has two cis six- membered chelating rings.
Yellow crystals of (3) are triclinic space group P-1 with a=8.006 (4), b=11.244(9), c=12.670 (3)A,V=1134.9 (1)A3,α=88.66 (4),β=85.76 (3),γ=87.20 (3)Z=2. Final R values are Rf=0.046, Rw=0.048. The compound (3) has a chelating ring and single bridged structure.
Yellow crystals of (4) are monoclinic space group P21/c with a=9.776 (4),b=19.219 (6),c=26.032 (1)A, V=4859 (3)A3, β=96.56 (3)0,Z=4. Final R values are Rf=0.034, Rw=0.031. The compound (4) has a chelating ring and a dangled structure and is a trisubstituted mononuclear complex.
Light yellow crystals of (5) are monoclinic space group P21/a with a=9.797 (2),b=19.296 (3), c=26.015 (2)A, V=4871 (1)A3,β=96.92 (3)Z=4.Final R values are Rf=0.088, Rw=0.094.The compound (5) is a trisubstituted mononuclear complex.