Addendum: Anti-Electrostatic Hydrogen Bonds

Hydrogen Bonds

"Neutral hydrogen survey of andromeda galaxy": addendum.

mum) and the temperature coefficient of d-c output voltage is 1 mv per degree Celsius. A negative capacitance circuit is provided which improves the overall frequency response of the amplifier but unavoidably adds noise to the input signal if large stray capacitances are compensated. Signals of 40 pv through 7 Mohm (microelectrode in saline) can be faithfully reproduced. The amplifier has been ...

Short hydrogen bonds in proteins.

Short hydrogen bonds are present in many chemical and biological systems. It is well known that these short hydrogen bonds are found in the active site of enzymes and aid enzyme catalysis. This study aims to systematically characterize all short hydrogen bonds from a nonredundant dataset of protein structures. The study has revealed that short hydrogen bonds are commonly found in proteins and a...

Vibrational dynamics of hydrogen bonds

Correlated Tunneling in Hydrogen Bonds

We study the quantum nature of the protons participating in hydrogen bonds in several ice structures by analyzing the one particle density matrix. We find that in all cases, including ice Ih, the most common form of ice, and the high pressure phases, ice VIII, VII, and X, the system is ground-state dominated. However, while the dynamics is uncorrelated in the structures with standard asymmetric...