Rovibrational energy transfer in the 4nu(sub CH) manifold of acetylene viewed by IR-UV double resonance spectroscopy. 2. Perturbed states with J = 17 and 18

Article Abstract:

Collision-induced state-to-state molecular energy transfer between rovibrational states in the 12 700 cm(super -1) 4nu(sub CH) manifold of the electronic ground state of acetylene is monitored by time-resolved infrared-ultraviolet double resonance (IR-UV DR) spectroscopy. Three complementary forms of IR-UV DR experiments are used to address the extent to which intramolecular perturbations influence the efficiency of J-resolved collision-induced energy transfer with both even and odd delta J.

Acetylene, Chemical properties, Energy transformation

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Anesthetic-enhanced membrane fusion examined using two-photon fluorescence correlation spectroscopy

Article Abstract:

The use of two-photon excitation fluorescence cross-correlation spectroscopy (TPE-XCS) to measure simultaneously the Kinetics and structural changes occurring early in the process of vesicle fusion is described. The findings indicate that in the presence of a novel fusion agent, halothane, and uniamellar vesicles of dioleoylphosphatidylcholine fuse at rates slower than the diffusion limit.

Usage, Observations, Membrane fusion, Fluorescence spectroscopy

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Condensed phase dispersive interactions of benzo(alpha)pyrene with various solvents and with DNA. A twist on solvatochromism

Article Abstract:

The solvatochromism of B(alpha)P fluorescence in a range of solvents is reported.

Benzopyrene

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