In the present work, an extensive theoretical calculation study on Histidine-Histidine dipeptide in gas phase is done by using DFT method with Gaussian 98 program. Through investigations on the molecular geometries of this molecule it is found that there is six rings in the molecules not two rings. The presence of four intramolecular hydrogen bonds is responsible for the formation of additional...

We use the newly introduced spanning stress tensor trajectory $U_{\sigma}$-space construction within next generation quantum theory of atoms in molecules (NG-QTAIM) for a chirality investigation singly and doubly substituted ethane with halogen substituents: F, Cl, Br. A lack achiral character was discovered ethane. The resultant axial bond critical point (BCP) sliding responded more strongly t...

We report the addition of M–H bonds (M1⁄4 Al, Zn, Mg) to a Rh(III) intermediate generated from the reductive elimination of triethylsilane from [Cp*Rh(H)2(SiEt3)2]. A series of new heterobimetallic complexes possessing Rh–M bonds have been isolated and characterised by a number of spectroscopic (H, Si, C, Rh NMR, infrared, and X-ray diffraction) and computational techniques (NBO and QTAIM analy...