{N,N′-Bis­[2-(di­phenyl­phosphan­yl)ethan-1-yl­idene]ethyl­enedi­amine}bromido­(p-toluene­sulfonyl­methyl isocyanide)iron(II) tetra­phenyl­borate

In the title compound, [FeBr(C₉H₉NO₂S)(C₃₀H₃₀N₂P₂)][B(C₆H₅)₄], the Fe^II ion is in a distorted octa­hedral CBrN₂P₂ coordination geometry with a P—Fe—P angle of 109.95 (3)°. The relative orientation of the p-toluene­sulfonyl­methyl isocyanide ligand is defined by the C—S—C—N torsion angle of 67.1 (2)°. In the crystal, pairs of weak C—H...O hydrogen bonds connect the cations into inversion dimers, forming R₂²(8) rings.

3-Meth­oxy-2-[5-(naphthalen-2-yl)-4,5-di­hydro-1H-pyrazol-3-yl]phenol

The asymmetric unit of the title compound, C₂₀H₁₈N₂O₂, contains two independent mol­ecules in which the dihedral angles between the naphthalene ring system [r.m.s. deviations = 0.012 (1) and 0.015 (1) Å] and the benzene ring are 71.65 (6) and 74.51 (6)°. In the crystal, pairs of N—H...O hydrogen bonds form two independent inversion dimers with graph-set notation R₂²(14). In addition, each mol­ecule contains an intra­molecular O—H...N hydrogen bond with an S(6) motif.

(3-Methyl-3a,4,7,7a-tetra­hydro-5H-4,7-methano­isoxazolo[4,5-d][1,2]oxazin-5-yl)(phen­yl)methanone

The title compound, C₁₄H₁₄N₂O₃, is the exo isomer with a syn arrangement of two O atoms in the isoxazole and oxazine rings. The dihedral angle between the isoxazole and phenyl rings is 60.38 (4)°. In the crystal, weak C—H...O hydrogen bonds link the mol­ecules, forming a three-dimensional network. The isoxazole O atom is an acceptor for three of these hydrogen bonds.

5,8-Dimeth­oxy-3,9-dimethyl-3a,4,9,9a-tetra­hydro-4,9-ep­oxy­naphtho­[2,3-d]isoxazole

The title compound, C₁₅H₁₇NO₄, is the exo isomer with a syn arrangement of the O atom in the isoxazole ring to the methyl group of the bicyclic alkene. The dihedral angle between the isoxazole ring and the benzene ring is 7.42 (9)°. In the crystal, weak C—H...O hydrogen bonds link mol­ecules, forming a three-dimensional network. The isoxazole O atom is an acceptor for both weak hydrogen bonds.

1-(3-Hy­droxy-5,8-dimeth­oxy-4-methyl-1,2,3,4-tetra­hydro-1,4-ep­oxy­naphthalen-2-yl)ethan-1-one

The stereochemistry and regioschemistry (exo) of the title compound, C₁₅H₁₈O₅, were determined by the X-ray analysis. The meth­oxy groups essentially lie in the plane of the benzene ring to which they are attached, as described by the C—O—C[pdbond]C torsion angles of −176.80 (12) and 4.67 (19)°. In the crystal, O—H...O hydrogen bonds and weak C—H...O hydrogen bonds link the mol­ecules, forming chains of R₂¹(8) rings along [010].

cis-2-(4-Meth­oxy­phen­yl)-4-methyl-1,2-di­hydro­naphthalen-1-ol

The stereochemistry and regiochemistry of the title compound, C₁₈H₁₈O₂, were determined by the X-ray analysis. There are two independent mol­ecules in the asymmetric unit in which the dihedral angles between the benzene rings are 88.31 (4) and 86.27 (4)°. The cyclo­hexene rings are in half-chair conformations. In the crystal, O—H...O hydrogen bonds link alternating types of mol­ecules into chains along [010] with graph-set C₂²(4).