Di-μ-chlorido-bis­{[2-(di-tert-butyl­phosphan­yl)biphenyl-3-yl-κ²C³,P]palladium(II)} dichloro­methane disolvate

The asymmetric unit of the title compound, [Pd₂Cl₂(C₂₀H₂₆P)₂]·2CH₂Cl₂, contains one half-mol­ecule of the palladium complex and a dichloro­methane solvent mol­ecule. In the complex, two Pd^II atoms are bridged by two Cl atoms, with the other two coordination sites occupied by a C atom of the biphenyl system and a P atom, resulting in a distorted square-planar coordination geometry of the Pd^II atom and a cyclo­metallated four-membered ring. The Pd₂Cl₂ unit is located about an inversion center. The planes of the rings of the biphenyl system make a dihedral angle of 66.36 (11)°.

1-(5-Hy­droxy-2,2,8,8-tetra­methyl-2H,8H-pyrano[2,3-f]chromen-6-yl)-3-(4-meth­oxy­phen­yl)prop-2-en-1-one

In the biologically active title compound, C₂₆H₂₆O₅, the pyran ring of the chromene unit adopts a half-chair conformation. The C=C double bond of the propenone unit exhibits a trans conformation and the carbonyl group is syn conformation to the double bond. The dihedral angle between the benzene ring and the benzopyran­one moiety is 31.54 (4)°. The mol­ecular structure is stabilized by an intra­molecular C=O...H—O hydrogen bond.