研究生: |
施育堯 |
---|---|
論文名稱: |
含氮,磷雙牙混合配子VIB金屬錯合物的合成及結構研究-[Mo(CO)3(phen))2(μ-dppp)],[Mo(CO)3(N-N)(dppm)](N-N=phen, bipy, bpp) |
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: | 152 |
中文關鍵詞: | 金屬錯合物 、混合配子 |
論文種類: | 學術論文 |
相關次數: | 點閱:131 下載:0 |
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本論文主要利用雙二苯膦烷基配子和Mo(CO)4(bipy)Mo(CO)4(phen), Mo(CO)4(bpp)(bpp=2, 3-Bis(2-pyridyl)pyrazine),以TMNO(氧化三甲基胺)合成含氮,磷混合配子三羰基零價金屬錯合物。紅外線光譜初步鑑定,並且製備得到單晶錯合物;Cr(CO)4(72-bpp)(1), Mo(CO)4(72-bpp)(2), Mo(CO)3(bipy)(71-dppm)(3), W(CO)4(72-tpy)(4), {Mo(CO)3(phen)}2(u-dppp)(5), Mo(CO)3(phen)(71-dppm)(6), Mo(CO)3(72-bpp)(71-dppm)(7),所得到之單晶錯合物,進一步以X-ray繞射法完成其結構解析。
紅棕色的(1)錯合物為單斜晶系(Monoclinic),空間群P 21/n,a=12.220(6)A,b=11.607(6)A,c=13.076(5)A β=112.18(4)°,V=1717.5(1)A3,Z=4,Rf=0.050,Rw=0.059,Gof=3.82。
紅棕色的(2)錯合物為單斜晶系(Monoclinic),空間群P 21/n,a=12.364(3)A,b=11.5253(2)A,c=13.314(7)A,β=112.86(3)°,V=1748.2(1)A3,Z=4,Rf=0.033,Rw=0.030,Gof=1.73;其與(1)錯合物為同形異質體。
深紅色的(3)錯合物為單斜晶系(Monoclinic),空間群C 2/c,a=28.081(7)A,b=10.698(8)A,c=22.893(6)A,β=101.852(2)°,V=6731(6)A3,Z=8,Rf=0.052,Rw=0.047,Gof=2.05。
紅棕色的(4)錯合物為三斜晶系(Triclinic),空間群P 1,a=7.190(3)A,b=11.062(3)A,c=13.447(4)A,α=102.47(3)°,β=89.762(3)°,γ=102.27(3)°,V=1019.5(6)A3,Z=2,Rf=0.082,Rw=0.130,Gof=8.11。
深紅色的(5)錯合物為單斜晶系(Monoclinic),空間群P 21/c,a=10.7743(2)A,b=26.297(3)A,c=18.921(5)A,β=100.740(2)°,V=5267.0(17)A3,Z=4,Rf=0.055,Rw=0.050,Gof=1.76。
深紅色的(6)錯合物為單斜晶系(Monoclinic),空間群P 21/n,a=18.429(6)A,b=11.1618(2)A,c=20.189(4)A,β=107.395(2)°,V=3962.9(2)A3,Z=4,Rf=0.098,Rw=0.093,Gof=4.00。
藍綠色的(7)錯合物為三方晶系(Trigonal),空間群R 3,a=28.589(6)A,c=29.261(1)A,V=20712(8)A3,Z=18,Rf=0.094,Rw=0.113,Gof=4.16;其與(3),(6)錯合物相同,僅以(P-P)雙牙配子之一端磷參與鍵結,另一端磷則懸吊在外。
Molybdenum tricarbonyl complexes containing nitrogen and phosphorous ligands were synthesized with Mo(CO)4(bipy), Mo(CO)4(phen), Mo(CO)4(bpp) (bpp=2, 3-Bis(2-pyridyl)pyrazine) and alkyl-bis(diphenyl phosphino) ligand by oxidative decarbonylation using trimethylamine N-oxide as an chemical initiator. complexes were indentified by nfrared and other spectra. The crystal structures of Cr(CO)4(72-bpp)(1), Mo(CO)4(72-bpp)(2), Mo(CO)3(bipy)(71-dppm)(3), W(CO)4(72-tpy)(4), {Mo(CO)3(phen)}2(μ-dppm)(5), Mo(CO)3(phen)(71-dppm)(6), Mo(CO)3(72-bpp)(71-dppm)(7) have been undertaken by X-ray diffration method.
Browm red crystal of 1 crystallized in the monoclinic space group P 21/n with a=12.220(6)A, b=11.607(6)A, c=13.076(5)A, β=112.18(4)°, V=1717.5(1)A3, Z=4, Rf=0.050, Rw=0.059, Gof=3.82.
Browm red crystal of 2 crystallized in the monoclinic space group P 21/n with a=12.364(3)A, b=11.5253(2)A, c=13.314(7)A, β=112.86(3)°, V=1748.2(1)A3, Z=4, final R value are Rf=0.033, Rw=0.030, Gof=1.73; crystal 2 and crystal 1 are isomorphous.
Deeply red crystal of 3 crystallized in the monoclinic space group C 2/c with a=28.081(7)A, b=10.698(8)A, c=22.893(6)A, β=101.852(2)°, V=6731(6)A3, Z=8, final R value are Rf=0.052, Rw=0.047, Gof=2.05.
Browm red crystal of 4 crystallized in the triclinic space group P 1 with a=7.190(3)A, b=11.062(3)A, c=13.447(4)A, α=102.47(3)°, β=89.762(3)°, γ=102.27(3)°, V=1019.5(6)A3, Z=2, Rf=0.082, Rw=0.130, Gof=8.11.
Deeply red crystal of 5 crystallized in the monoclinic space group P 21/c with a=10.7743(2)A, b=26.297(3)A, c=18.921(5)A, β=100.740(2)°, V=5267.0(17)A3, Z=4, final R value are Rf=0.055, Rw=0.050, Gof=1.76.
Deeply red crystal of 6 crystallized in the monoclinic space group P 21/n with a=18.429(6)A, b=11.1618(2)A, c=20.189(4)A, β=107.395(2)°, V=3962.9(2)A3, Z=4, final R value are Rf=0.098, Rw=0.093, Gof=4.00.
Blue green crystal of 7 crystallized in the trigonal space group R 3 with a=28.589(6), c=29.261(1)A, V=20712(8)A3, Z=18, Rf=0.094, Rw=0.113, Gof=4.16;complexes (7), (6) and (3) are similiar with that the bidentate (P-P) ligand uses only one phosphine to coordinate to metal, and the other phosphine atom in the same ligand is dangling.