- 作者: Honma, K.
- 作者服務機構: Dept. of Material Science, Himeji Inst. of Technology, Kamigori, Hyogo, Japan
- 中文摘要: The kinetics of depletion of ground state Ti(a/sup 3/ F) and electronically excited state Ti(a/sup 5/F) upon interactions with CH/sub 4/, C/sub 2/H/sub 2/, C/sub 2/ H/sub 4/, and C/sub 2/H/sub 6/ are studied in a fast-flow reactor at a He pressure of 0.70 Torr. No depletion of ground state Ti(a/sup 3/F) was observed upon interaction with all hydrocarbons studied here. Two alkanes, CH/sub 4/ and C/sub 2/H/sub 6/, were also quite inert for depletion of the excited state Ti(a/sup 5/F). On the other hand, C/sub 2/ H/sub 2/ and C/sub 2/H/sub 4/ deplete the excited state Ti(a/sup 5/F) very efficiently. Rate constants were determined to be (266.plmin.86) and (476.plmin.88)* 10/sup -12/cm/sup 3//s for Ti(a/sup 5/F)+C/sub 2/H/sub 4/ and Ti(a/sup 5/F )+C/sub 2/H/sub 2/, respectively. These large rate constants compared with the ground state Ti were explained by an electron donor-acceptor interaction model that works in the interaction between C/sub 2/H/sub 4/ or C/sub 2/H/sub 2/ and the excited state with unfilled 4s orbital.
- 英文摘要: --
- 中文關鍵字: Kinetics; Titanium; Electronically Excited State; Fast-Flow Reactor; Electron Donor-Acceptor Interaction Model; Rate Constant
- 英文關鍵字: 動力學;鈦;電子激發態;快速流反應器;電子施體-受體交互作用模式;速率常數