Year XXX, Issue 6, 2021<<Archive>>
From thе Rеsеаrch Lаborаtoriеs
SEMIEMPIRICAL QUANTUM CHEMICAL AND AB INTIO STUDY OF Co(II), Ni(II),Cu(II) AND Zn(II) COMPLEXES WITH THE AZO DYE DERIVED FROM 4-AMINO ANTIPYRINE AND 2,4-DIHYDROXY ACETOPHEONE
Semi-empirical quantum chemical calculation was made to study the nucleophilicity of the ligand and to study the mode of bonding between the ligand and the metal ions. The natural atomic charge at different atomic sites of the ligand has been calculated along...
Semiempirical study; Chem 3D Ultra; Natural atomic charge; Molecular polarisability
ON THE SOUND, PRODUCED BY A COIN, ROLLING IN A BALLOON
Balloons may be a thing children love playing with, but they also have different interesting physical properties such as the sound that is produced when something is put inside a balloon. The phenomenon of interest of this article is the one of gently rolling...
IYNT; buzzing sound; coin; balloon; frequency; velocity