The σ-hole and π-hole are the regions with positive surface electrostatic potential on the
molecule entity; the former specifically refers to the positive region of a molecular entity …

Conspectus Noncovalent bond interactions provide primary driving forces for
supramolecular processes ranging from molecular recognition to self-assembly of …

Well-orchestrated noncovalent interactions are fundamental in chemical processes. 1 For
example, the assembly of complementary subunits to form functional aggregates is a …

Anion–π interactions, intuitively repulsive forces, turned from controversial to a well-
established non-covalent interaction over the past quarter of a century. Within this time frame …

1. Introduction s-Tetrazines are long ago discovered molecules, whose first report dates
back to the end of the 19th century. 1 The first synthesis was reported by Pinner, who …

Anions are essential species in biological systems and, particularly, in enzyme–substrate
recognition. Therefore, the design and preparation of anion receptors is a topical field of …

The anion-π interaction, a non-covalent attractive force between hosts (electron-deficient
arenes) and guests (anions) besides having many turns and surprises has recently turned …

Intense colorations and new charge-transfer absorption bands are observed upon addition
of a halide (Cl−, Br−, I−) to neutral organic π acceptors with electron-deficient olefinic and …

Unprecedented anion− π interactions are revealed for the electron-poor triazine rings in [L2
(CuCl) 3][CuCl4] Cl (L= hexakis (pyridin-2-yl)-[1, 3, 5]-triazine-2, 4, 6-triamin), where both the …

Reactions of 3, 6-bis (2-pyridyl)-1, 2, 4, 5-tetrazine (bptz) with solvated first-row transition
metals M (II)(M (II)= Ni, Zn, Mn, Fe, Cu) have been explored with emphasis on the factors that …