In this study, we successfully synthesized enantiomerically pure (R)- and (S)-γ-amino acids (>99% ee) using ω-transaminase (ω-TA) through kinetic resolution and asymmetric synthesis respectively. The present study demonstrates the high potentiality of ω-TA reaction for the production of chiral γ-amino acids.

A high resolution spectrum of FTS sunspot umbra of NSO/Kitt Peak was used to conduct a search for the molecular absorption lines due to BeH, BeD and BeT isotopomers. Analysis led to estimates of identification of the molecular lines of bands A -X (0,0), (1,1) and (2,2) for BeH, A -X (0,0), (1,1), (2,2) and (3,3) for BeD and of A -X (0,0), (1,1) and (2,2) for BeT. Among the identified lines, those which are well resolved were selected for measurements to calculate equivalent widths. The values of effective rotational temperature T were estimated for bands A -X(1,1) and (2,2) of BeH, A -X(1,1) of BeD and A -X(2,2) of BeT to be 4228K, 4057K, 3941K and 3243K respectively.

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High-resolution Fourier transform spectrometer sunspot umbral spectra obtained at the National Solar Observatory/Kitt Peak were used to identify molecular rotational lines arising from the infrared band systems of CrH and CrD molecules. Measurement of the equivalent width used the Gaussian-profile approximation method, which is suitable especially for faint lines. Equivalent widths are measured for an adequate number of best lines of the A -X (0, 0) band of CrH and the A -X (0, 0; 1, 0) bands of CrD and, thereby, the effective rotational temperatures are estimated.

The vibronic (vibration-electronic) transition probability parameters such as Franck-Condon (FC) factors and r-centroids of diatomic molecular species could be useful in the identification of molecular bands and in the estimation of relative abundance of the emitted species in astrophysical sources. In this study, they have been evaluated for the electronic transitions A2?r-X2?+, B2?r-X2?+ and C2?+ - X2?+ systems of BeH, A2?r - X2? and C2?+ - X2?+ system of BeD and A2?r - X2?+ system of BeT molecules using a suitable potential.

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A high resolution spectrum of a sunspot umbra is used for identification of rotational lines due to (0, 0) band of the A 2 -X 2 + system and (0, 0), (1, 1), and (2, 2) bands of the B 2 + -X 2 + system of the molecule SrF. The published sunspot umbral spectrum obtained with Fourier Transform Spectrometer and solar telescope of National Solar Observatory/National Optical Astronomy Observatory at Kitt Peak was used for the study. The new identification of more than 200 SrF lines in the umbral spectrum confirms that this molecule accounts for the majority of lines in the spectral range 15050 to 15360 cm −1 and 17240 to 17300 cm −1 . Equivalent widths have been measured for well-resolved lines of these bands and the effective rotational temperatures have been estimated for which the presence is confirmed.