[Ti(CN=3)] [Zr(CN=3)] [Ti(CN=4)] [Zr(CN=4)]
要探討的反應為 SiH3CH=CH2 + [polymer-TiCp2]+ → PRODUCT+
PRODUCT+ = [SiH3polymerCH-CH2TiCp2]+ or [SiH3TiCp2CH-CH2polymer]+
SiH3CH=CH2 |
[polymer-TiCp2]+ (polymer = CH3) |
|
|
|
|
[axSiH3polymerCH-CH2TiCp2]+ |
[ax-polymerSiH3CH-CH2TiCp2]+ |
[axSiH3TiCp2CH-CH2polymer]+ |
[axTiCp2SiH3CH-CH2polymer]+ |
[axSPCH-CH2T]+ | [axPSCH-CH2T]+ | [axSTCH-CH2P]+ | [axTSCH-CH2P]+ |
Pople-type basi set | ||||||||
TiCp2 和 SiH3 不同邊 | TiCp2 和 SiH3 同邊 | |||||||
(polymer = CH3) | [axSPCH-CH2T]+ | [axPSCH-CH2T]+ | [axSTCH-CH2P]+ | [axTSCH-CH2P]+ | ||||
B3LYP/6-31G* | -20.65 | -25.72 | -31.19 | -19.84 | -27.76 | -32.16 | ||
B3LYP/6-311+G** SP | -17.34 | -22.66 | -28.11 | -16.30 | -24.56 | -29.03 | ||
B3LYP/6-311+G(2df,2pd) SP | -16.48 | -21.65 | -27.24 | -15.36 | -23.69 | -28.16 | ||
MP2/6-31G* SP | -37.98 | -40.34 | -48.76 | -34.89 | -43.58 | -49.62 | ||
MP2/6-311+G** SP | -40.31 | -42.77 | -51.09 | -36.67 | -45.77 | -51.46 | ||
MP2/6-311+G(2df,2pd) SP | -39.80 | -41.50 | -49.95 | -35.55 | -44.39 | -50.42 | ||
M06-2X/6-31G* SP | -34.63 | -38.43 | -43.30 | -32.83 | -39.02 | -43.96 | ||
M06-2X/6-311+G** SP | -32.66 | -36.15 | -41.26 | -30.52 | -36.93 | -41.79 | ||
M06-2X/6-311+G(2df,2pd) SP | -31.70 | -34.70 | -40.06 | -29.30 | -35.88 | -40.60 | ||
M06-2X/aptz SP | -32.08 | -35.02 | -40.35 | -36.22 | ||||
B3LYP/6-311+G** | -17.31 | -22.63 | -28.09 | -16.30 | -24.53 | -29.01 | ||
MP2/6-31G* | -39.59 | -46.33 | -47.87 | -36.55 | -42.78 | -48.75 | ||
MP2/6-311+G** SP | -41.73 | -48.37 | -49.20 | -33.71 | -44.21 | -49.51 | ||
MP2/6-311+G(2df,2pd) SP | -41.86 | -49.11 | -48.63 | -33.08 | -43.25 | -49.06 | ||
M06-2X/6-31G* SP | -34.97 | -39.30 | -44.81 | -34.55 | -40.40 | -45.59 | ||
M06-2X/6-311+G** SP | -32.75 | -37.20 | -42.47 | -32.08 | -38.04 | -43.09 | ||
M06-2X/6-311+G(2df,2pd) SP | -31.97 | -36.51 | -41.37 | -31.09 | -37.09 | -42.04 | ||
M06-2X/aptz SP | -32.41 | -36.89 | -41.71 | -37.44 | -42.43 | |||
MP2/6-311+G** | ||||||||
M06-2X/6-311+G** | -33.17 | -36.51 | -41.66 | -31.30 | -37.35 | -42.12 |
B3LYP/6-31G* opt 差 6.44 kcal/mol
B3LYP/6-311+G** SP 差 6.37 kcal/mol
B3LYP/6-311+G(2df,2pd) SP 差 6.51 kcal/mol
MP2/6-31G* SP 差 9.28 kcal/mol
MP2/6-311+G** SP 差 8.69 kcal/mol
MP2/6-311+G(2df,2pd) SP 差 8.92 kcal/mol
M06-2X/6-31G* SP 差 5.53 kcal/mol
M06-2X/6-311+G** SP 差 5.64 kcal/mol
M06-2X/6-311+G(2df,2pd) SP 差 5.9 kcal/mol
MP2/6-31G* opt 差 2.42 kcal/mol
MP2/6-311+G** SP 差 1.14 kcal/mol
MP2/6-311+G(2df,2pd) SP 差 0.05 kcal/mol [SPCH-CH2T]+ 放出較多熱
M06-2X/6-31G* SP 差 6.29 kcal/mol
M06-2X/6-311+G** SP 差 5.89 kcal/mol
M06-2X/6-31G* SP 差 5.53 kcal/mol
M06-2X/6-31G* OPT 差 5.61 kcal/mol
除了 MP2/6-311+G(2df,2pd) SP,結果都是 [STCH-CH2P]+ (SiH3 和 TiCp2 接在同 C 上) 放出較多的熱
B3LYP/6-311+G**//B3LYP/6-31G* 的能量和 B3LYP/6-311+G** 相當接近,說明了 B3LYP/6-31G* 和 B3LYP/6-311+G** 的結構很接近,對這個系統而言,提高 basis set 對結構影響不大
使用 Dunning-type basis set,目的在於對照 Ti、Zr 在相同方法和 basis set 下,能量是否會差不多
Dunning-type basis set | |||||
(polymer = CH3) | [axSPCH-CH2T]+ | [axPSCH-CH2T]+ | [axSTCH-CH2P]+ | [axTSCH-CH2P]+ | |
B3LYP/pdz | -20.26 | -25.30 | -30.67 | -31.55 | |
B3LYP/apdz SP | -19.98 | -24.97 | -30.19 | -31.00 | |
B3LYP/aptz SP | -16.83 | -22.04 | -27.54 | -28.48 | |
MP2/pdz SP | -38.27 | -41.01 | -49.27 | -49.89 | |
MP2/apdz SP | -42.42 | -44.69 | -52.56 | -52.98 | |
MP2/aptz SP | |||||
M06-2X/pdz SP | -33.73 | -37.58 | -42.64 | -43.23 | |
M06-2X/apdz SP | -34.35 | -37.93 | -42.72 | -43.20 | |
M06-2X/aptz SP | |||||
B3LYP/apdz |
8/30 Transition State
SiH3 和 TiCp2 同邊的部份反應路徑如下圖:
TiCp2 和 SiH3 同邊 | |||||
(polymer = CH3) | Intermediate | TS_a | [axSTCH-CH2P]+_a | TS_b | [axSTCH-CH2P]+_b |
B3LYP/6-31G* | -7.75 | -0.13 | -19.84 | -19.69 | -31.19 |
B3LYP/6-311+G** SP | -5.11 | 2.87 | -16.30 | -15.98 | -28.11 |
B3LYP/6-311+G(2df,2pd) SP | -4.89 | 3.25 | -15.36 | -14.94 | -27.24 |
MP2/6-31G* SP | -18.97 | -18.85 | -34.89 | -33.07 | -48.76 |
MP2/6-311+G** SP | -20.97 | -22.29 | -36.67 | -34.35 | -51.09 |
MP2/6-311+G(2df,2pd) SP | -20.10 | -22.57 | -35.55 | -32.97 | -49.95 |
M06-2X/6-31G* SP | -17.87 | -11.75 | -32.83 | -32.16 | -43.30 |
M06-2X/6-311+G** SP | -16.62 | -10.29 | -30.52 | -29.62 | -41.26 |
M06-2X/6-311+G(2df,2pd) SP | -16.03 | -9.77 | -29.30 | -28.16 | -40.06 |
MP2 下,intermediate 到 TS_a 的 barrier 不超過 2 kcal/mol
整個反應路徑的 TS 能量都低於 reactants,所以預估這個反應的反應速率相當的快
SiH3 和 TiCp2 同邊,此反應路徑後面的部分,猜測會經過剩下的兩個 products,目前其中一個 TS 已經找到,但是還無法確定是否為此反應的 TS
SiH3 和 TiCp2 不同邊的部份,預估還會再有兩個 products,為單鍵旋轉過程的 isomer
要探討的反應為 SiH3CH=CH2 + [polymer-ZrCp2]+ → PRODUCT+,原本第三週期的 Ti 置換為同族第四週期的 Zr
PRODUCT+ = [SiH3polymerCH-CH2ZrCp2]+ or [SiH3ZrCp2CH-CH2polymer]+
相對能量 | |||||
(polymer = CH3) | [axSiH3polymerCH-CH2ZrCp2]+ | [ax-polymerSiH3CH-CH2ZrCp2]+ | [axSiH3ZrCp2CH-CH2polymer]+ | [axZrCp2SiH3CH-CH2polymer]+ | |
B3LYP/6-31G* | -22.96 | -27.73 | -32.65 | -28.45 | |
B3LYP/6-31+G** SP | -20.69 | -25.24 | -30.09 | -26.07 | |
B3LYP/6-311+G(2df,2pd) SP | -20.68 | -25.36 | -30.50 | -26.18 | |
MP2/6-31G* SP | -40.30 | -41.71 | -48.38 | -42.97 | |
MP2/6-31+G** SP | -42.67 | -43.34 | -49.79 | -44.56 | |
MP2/6-311+G(2df,2pd) SP | -44.28 | -44.45 | -51.21 | -45.81 | |
M06-2X/6-31G* SP | -37.54 | -40.27 | -45.15 | -40.02 | |
M06-2X/6-31+G** SP | -35.93 | -38.22 | -43.11 | -38.35 | |
M06-2X/6-311+G(2df,2pd) SP | -36.21 | -38.15 | -43.45 | -38.42 | |
B3LYP/6-31+G** | -20.68 | -25.24 | -30.08 | -26.06 | |
(polymer = CH3) | [axSiH3polymerCH-CH2ZrCp2]+ | [ax-polymerSiH3CH-CH2ZrCp2]+ | [axSiH3ZrCp2CH-CH2polymer]+ | [axZrCp2SiH3CH-CH2polymer]+ | |
B3LYP/pdz | -24.20 | -28.71 | -33.50 | -29.33 | |
B3LYP/apdz SP | -24.22 | -28.65 | -33.28 | -29.23 | |
MP2/pdz SP | -43.35 | -44.76 | -51.14 | -45.68 | |
MP2/apdz SP | -55.39 | -49.94 | |||
M06-2X/pdz SP | -37.98 | -40.58 | -45.43 | -40.48 | |
M06-2X/apdz SP | -38.99 | -41.31 | -45.90 | -41.17 |
B3LYP/6-31G* opt 差 4.92 kcal
B3LYP/6-31+G** SP 差 4.85 kcal
B3LYP/6-311+G(2df,2pd) SP 差 5.14 kcal
MP2/6-31G* SP 差 6.67 kcal
MP2/6-31+G** SP 差 6.45 kcal
MP2/6-311+G(2df,2pd) SP 差 6.76 kcal
M06-2X/6-31G* SP 差 4.88 kcal
M06-2X/6-31+G** SP 差 4.89 kcal
M06-2X/6-31+G** SP 差 4.89 kcal
B3LYP/6-311+G** opt 差 4.84 kcal
B3LYP/pdz opt 差 4.79 kcal
B3LYP/apdz SP 差 4.63 kcal
MP2/pdz SP 差 6.38 kcal
M06-2X/pdz SP 差 4.85 kcal
M06-2X/apdz SP 差 4.59 kcal 結果都是 [SiH3ZrCp2CH-CH2polymer]+ 放出較多的熱
-24.08 kcal/mol -33.50 kcal/mol
要探討的反應為 SiH3CH=CH2 + polymer2-TiCp2 → PRODUCT
PRODUCT = SiH3polymerCH-CH2(TiCp2polymer) or SiH3(TiCp2polymer)CH-CH2polymer
SiH3CH=CH2 polymer2-TiCp2 (polymer = CH3)
(polymer = CH3) | axSiH3polymerCH-CH2(TiCp2polymer) | ax-polymerSiH3CH-CH2(TiCp2polymer) | axSiH3(TiCp2polymer)CH-CH2polymer | [ax(TiCp2polymer)SiH3CH-CH2polymer | ||||||||
B3LYP/6-31G* | -11.34 | -13.78 | -14.75 | -12.61 | -12.51 | -14.05 | -13.86 | -14.17 | -12.28 | -15.78 | -16.97 | |
B3LYP/6-311+G** SP | -8.24 | -10.69 | -11.39 | -9.57 | -9.29 | -10.62 | -10.41 | -10.57 | -8.80 | -12.29 | -13.40 | |
B3LYP/6-311+G(2df,2pd) SP | ||||||||||||
MP2/6-31G* SP | -21.32 | -23.98 | -25.52 | -22.79 | -22.80 | -25.09 | -27.62 | -27.88 | -25.09 | -29.08 | -30.76 | |
MP2/6-311+G** SP | ||||||||||||
MP2/6-311+G(2df,2pd) SP | ||||||||||||
M06-2X/6-31G* SP | ||||||||||||
M06-2X/6-311+G** SP | ||||||||||||
M06-2X/6-311+G(2df,2pd) SP | ||||||||||||
M06-2X/aptz SP |