Halogen monolayer on a silicon surface is attracting active attention for applications in electronic device fabrication with individual impurities. To create halogen mask the impurities incorporation, it desirable to be able remove single atom from surface. We report desorption of atoms Si(100)-2x1-Cl and -Br surfaces scanning tunneling microscope (STM). Silicon dangling bonds (DBs) formed Si a...

A distinct difference between the three-center halogen bond and analogous coordinative of silver is demonstrated by computational, X-ray crystallographic solution NMR spectroscopic investigations their complexes with a bidentate Lewis base. Iodine(I) preferentially forms an entropically favored monomeric complex, whereas silver(I) enthalpically dimeric complexes. Counterion coordination conside...

We report the elusive X-ray structure of the Dess-Martin periodinane (DMP), a hypervalent iodine reagent popular amongst synthetic chemists. In the solid state, the highly crystalline compound forms an intricate coordination polymer held together by intermolecular halogen and hydrogen bonds.

The title compound, C(13)H(11)ClF(3)NO(2), adopts a Z conformation. Halogen⋯oxygen inter-actions [Cl⋯O = 2.967 (3) Å] in the crystal packing lead to the formation of a dimer joined by two Cl⋯O bonds.

In the crystal structure of the title compound, C(5)H(5)BrN(2), mol-ecules assemble via pairs of N-H⋯N hydrogen bonds into inversion dimers using only the syn H atom on the amine group. These dimers then assemble further into two-dimensional layers via type I C-Br⋯Br [Br⋯Br = 3.693 (s6) Å] halogen bonding along the (102) plane.

Hydrogen and halogen bonds have been associated for the growth of 2D compact supramolecular networks on a silicon surface. These interactions have been elucidated in a complete monolayer of a 4,4''-dibromo-p-terphenyl (DBT) molecule on a Si(111)-B surface by combining scanning tunneling microscopy (STM) and density functional theory (DFT) calculations.

The title compound, C(14)H(11)BrClN(3)O, crystallizes with two independent mol-ecules in the asymmetric unit. In the crystal, the molecules are linked by C-N⋯Br halogen bonds, as well as weak methyl-ene C-H⋯π, phenyl C-H⋯π, C-H⋯Br and phenyl C-H⋯O(ether) inter-actions.