Treatment of the Fe(I) mesityl complex [Fe(Mes)(BPEP-Ph)] (BPEP-Ph = 2,6-bis[1-phenyl-2-(2,4,6-tri-tert-butylphenyl)-2-phosphaethenyl]pyridine) with π-acid ligands (L = CO, RNC) leads to one-electron reduction via Mes group migration from Fe to P, followed by homolytic elimination of the 2,4,6-tBu3C6H2 group, to afford Fe(0) complexes of the formula [Fe(L)2(BPEP-Ph*)] (BPEP-Ph* = 2-[1-phenyl-2-...

The title compound, [Al(2)(C(32)H(48)NO(3))(2)], exists as a dimer with bridging ethoxide groups. It was isolated from a reaction mixture of the parent ligand and trimethyl-aluminium in tetra-hydro-furan. The geometry around the Al(III) atom is a slightly distorted trigonal-bipyramid, typical of atrane derivatives.

In the title compound, C(29)H(30)N(2), the dihedral angle between the mean planes of the carbazole and the quinoline systems is 52.41 (6)°. Mol-ecules are linked into dimers by pairs of inter-molecular C-H⋯N hydrogen bonds and into a three-dimensional network by C-H⋯π inter-actions.

The title compound, C(11)H(21)Cl(3)N(2)O(4)S, was produced as part of a development programme of a new synthetic route to chloro-ethyl-nitro-sosulfamides (CENS) with three chloro-ethyl moieties. These compounds possess structural features that confer potential biological activity and act as alkyl-ating agents. The packing is governed by four weak C-H⋯O inter-actions, forming an infinite three-d...

The Sn atom in the title compound, [Sn(C(6)H(5))(3)(C(8)H(16)NS(2))], is penta-coordinated by two S atoms, derived from an asymmetrically coordinating dithio-carbamate ligand, and three ipso-C atoms. The coordination geometry is inter-mediate between square-pyramidal and trigonal-bipyramidal, with a leaning towards the latter. The presence of close intra-molecular C-H⋯S contacts preclude the S ...

A highly efficient phase-transfer catalytic aza-Michael addition of tert-butyl benzyloxycarbamate to a wide range of electron-deficient olefins is presented (90-99%).

In the title compound, C(11)H(21)NO(5), the H atoms of the hydr-oxy groups are disordered over two positions, each in a 1:1 ratio. In the crystal, inter-molecular O-H⋯O hydrogen bonds link pairs of mol-ecules into centrosymmetric dimers. Weak inter-molecular O-H⋯O inter-actions further link these dimers into chains extended in the [100] direction.

Pregeneration of fluoro(phenylsulfonyl)methyl anion (PhSO(2)CHF(-)) paves the way for the efficient and highly stereoselective monofluoromethylation of (R)-N-tert-butylsulfinyl ketimines. The stereocontrol mode of the present diastereoselective monofluoromethylation of ketimines is different from the previously known nucleophilic fluoroalkylation of (R)-N-tert-butylsulfinyl aldimines, which sug...

In the crystal of the title compound, C(15)H(23)NO(5)S, mol-ecules are linked through N-H⋯O and O-H⋯O hydrogen-bond inter-actions, resulting in centrosymmetric dimers in which the N-H⋯O inter-actions generate R(2) (2)(12) rings and the O-H⋯O inter-actions generate R(2) (2)(14) rings. Weak inter-molecular C-H⋯O inter-actions are also observed.

We demonstrate that the statistical behavior of random line shapes of single tetra-tert-butylterrylene chromophores embedded in an amorphous polyisobutylene matrix at T=2 K is described by Lévy statistics as predicted theoretically by Barkai, Silbey, and Zumofen [Phys. Rev. Lett. 84, 5339 (2000)]. This behavior is a manifestation of the long-range interaction between two-level systems in the gl...