4-Fluoro-2-[(3-methyl­phen­yl)imino­meth­yl]phenol

The title compound, C₁₄H₁₂FNO, crystallizes as the trans phenol–imine tautomer. The two benzene rings are essentially coplanar, being inclined to one another by 9.28 (7)°. This is at least in part due to the intra­molecular O—H...N hydrogen bond between the hy­droxy O atom and the imine N atom. The crystal structure is stabilized by an array of weak C—H...O and C—H...F inter­actions, which link the mol­ecules into a stable three-dimensional network.

Tetra-μ₃-hydroxido-tetra­kis­[tricarbonyl­rhenium(I)] pyridine tetra­solvate

The title compound, [Re₄(μ₃-OH)₄(CO)₁₂]·4C₅H₅N, crystallizes with one tetranuclear rhenium(I) cubane-like molecule and four pyridine mol­ecules in the asymmetric unit. The coordination environment of each Re^I atom is distorted octahedral. Four intra­molecular O—H...N and four inter­molecular C—H...O hydrogen-bond inter­actions are observed. Relatively strong hydrogen bonds are found between the hydrogen-bond donor (μ₃-OH) and acceptor (basic N atom of pyridine), with N...O distances between 2.586 (10) and 2.628 (10) Å. Inter­cube distances of 9.873 (2) and 12.376 (3) Å are observed.

4-(2-Chloro­phenyl­amino)-pent-3-en-2-one

In the title compound, C₁₁H₁₂ClNO, intra­molecular N—H...O hydrogen bonding is present. The dihedral angle between the benzene ring and the pentenone unit is 46.52 (5)°. In the crystal, C—H...O inter­actions between hydrogen atoms of the aryl moiety and two separate oxygen atoms occur, leading to a three-dimensional network.