“Strong” hydrogen bonds in chemistry and biology
CL Perrin, JB Nielson - Annual review of physical chemistry, 1997 - annualreviews.org
▪ Abstract Hydrogen bonds are a key feature of chemical structure and reactivity. Recently
there has been much interest in a special class of hydrogen bonds called “strong” or “low …
there has been much interest in a special class of hydrogen bonds called “strong” or “low …
Description of electron delocalization via the analysis of molecular fields
Chemists have been fascinated for a long time with electron delocalization in covalently
linked molecules, and especially with the prototypical phenomenon of aromaticity. Even …
linked molecules, and especially with the prototypical phenomenon of aromaticity. Even …
The electron pair
RFW Bader, S Johnson, TH Tang… - The Journal of Physical …, 1996 - ACS Publications
Eighty years have elapsed since Lewis introduced the concept of an electron pair into
chemistry where it has continued to play a dominant rôle to this day. The pairing of electrons …
chemistry where it has continued to play a dominant rôle to this day. The pairing of electrons …
Diaminocarbenes; Calculation of Barriers to Rotation about Ccarbene−N Bonds, Barriers to Dimerization, Proton Affinities, and 13C NMR Shifts
RW Alder, ME Blake, JM Oliva - The Journal of Physical Chemistry …, 1999 - ACS Publications
Barriers to rotation about the Ccarbene− N bonds in diaminocarbene (H2N) 2C 1a, bis
(dimethylamino) carbene ((CH3) 2N) 2C 1b, the related formamidinium ions (H2N) 2CH+ 2a …
(dimethylamino) carbene ((CH3) 2N) 2C 1b, the related formamidinium ions (H2N) 2CH+ 2a …
From weak interactions to covalent bonds: a continuum in the complexes of 1, 8-bis (dimethylamino) naphthalene
PR Mallinson, GT Smith, CC Wilson… - Journal of the …, 2003 - ACS Publications
Experimental charge density distributions in a series of ionic complexes of 1, 8-bis
(dimethylamino) naphthalene (DMAN) with four different acids: 1, 2, 4, 5 …
(dimethylamino) naphthalene (DMAN) with four different acids: 1, 2, 4, 5 …
Conformers, energetics, and basicity of 2, 2 '-bipyridine
ST Howard - Journal of the American Chemical Society, 1996 - ACS Publications
The proton affinities of the cis and trans conformers of 2, 2 '-bipyridine have been
determined at the MP2/6− 31G**//HF/6− 31G** level of theory. The neutral molecule and its …
determined at the MP2/6− 31G**//HF/6− 31G** level of theory. The neutral molecule and its …
Bond ellipticity as a measure of electron delocalization in structure and reactivity
C Silva Lopez, AR de Lera - Current Organic Chemistry, 2011 - ingentaconnect.com
The ellipticity of the electron density at the bond critical points is a parameter computed in
the framework of the Atoms in Molecules (AIM) analysis. This parameter provides a …
the framework of the Atoms in Molecules (AIM) analysis. This parameter provides a …
Naphthalene'proton sponges'
AF Pozharskii - Russian chemical reviews, 1998 - pubs.rsc.org
Naphthalene `proton sponges' Page 1 Abstract. Methods of synthesis, physicochemical and
structural characteristics, and reactivity of 1,8-bis(dialkylamino)naphthalą enes and some of …
structural characteristics, and reactivity of 1,8-bis(dialkylamino)naphthalą enes and some of …
Catalytic activity of proton sponge: Application to Knoevenagel condensation reactions
The catalytic activity of proton sponge 1, 8-bisdimethylamino naphthalene (DMAN)(pKa=
12.1), tested with Knoevenagel condensation between benzaldehyde and activated …
12.1), tested with Knoevenagel condensation between benzaldehyde and activated …
Symmetry of N−H−N Hydrogen Bonds in 1,8-Bis(dimethylamino)naphthalene·H+ and 2,7-Dimethoxy-1,8-bis(dimethylamino)naphthalene·H+
CL Perrin, BK Ohta - Journal of the American Chemical Society, 2001 - ACS Publications
In solution, are the hydrogen bonds in monoprotonated N, N, N ', N '-tetramethyl-1, 8-
naphthalenediamines single-or double-well? To answer this question, isotopic perturbation …
naphthalenediamines single-or double-well? To answer this question, isotopic perturbation …