ELECTRONIC AND MOLECULAR STRUCTURAL INVESTIGATIONS

电子和分子结构研究

• 批准号: 3917719
• 负责人: R MCDIARMID
• 金额: --
• 依托单位: NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES
• 依托单位国家: 美国
• 资助国家: 美国
• 起止时间: 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/3917719
• 关键词: Raman spectrometry; acetone; calcium; chemical structure; chlorpromazine; cis trans isomerization; diene; electronic spectra; erythrocyte membrane; erythrocytes; hemolysin; hemoprotein structure; infrared spectrometry; membrane permeability; molecular energy level; phospholipids; spectrometry; ultraviolet spectrometry

The measurement and analysis of the spectrum of the V <- N transition of 2,3-dideuterobutadiene has lead to the reinterpretation of the vibrational substructure of this transition. The diffuse subbands observed were shown to arise from transitions to mixed normal modes of the excited state, not to transitions to a progression in the C=C stretching vibration of the molecule. The diffuseness of the transition was shown to be due to rapid nonradiative relaxation through or over a very small barrier in the C=C torsion to a almost degenerate electronic state. Through an investigation of the spectral emission of tetramethyl butadiene, the energy ordering of the two states in question was shown to be in inverted in TMB from that observed in butadiene. The probably analogue of the acceptor state in butadiene was observed for the first time in any diene in the essentially cis isomer, cyclopentadiene. A polarization-selected resonant multiphoton ionization spectroscopic investigation of acetone was conducted to resolve existing questions concerning the excited state energy ordering in that molecule.

V <- N的光谱测量与分析 2，3-二氘丁二烯的过渡导致了 重新解释了这个振动的子结构， 过渡 所观察到的弥散子带被证明是由 过渡到激发态的混合正常模式，而不是 过渡到C=C伸缩振动的进展， 分子。 过渡的扩散性被证明是由于 通过或超过一个非常小的 势垒在C=C扭转到几乎简并的电子状态。 通过对四甲基溴的光谱发射的研究， 丁二烯，所讨论的两种状态的能量排序为： 显示在TMB中与在丁二烯中观察到的相反。 丁二烯中受体态的可能类似物是 首次在基本上顺式的任何二烯中观察到 异构体，环戊二烯。 偏振选择共振多光子电离 对丙酮进行了光谱研究，以解决 存在的问题，关于激发态能量排序， 这个分子。