Dicarbon-yl[2-hydr-oxy-3,5,7-tris-(mor-pho-linomethyl)cyclo-hepta-2,4,6-trien-onato(1-)-κO,O]rhodium(I)

Crystal structure of 3,5,7-tris(morpholinomethyl)tropolone·0.67 hydrate, C22H33N3O5·0.67H2O

C22H33N3O5·0.67H2O, monoclinic, P21/c, a = 11.9915(6) Å, b = 18.9934(10) Å, c = 10.5332(5) Å, β = 112.155(2)°, V = 2221.91(19) Å3, Z = 4, R gt(F) = 0.0417, wR ref(F 2) = 0.1139, T = 100(2) K.

Bis(diphenyl-p-tolyl-phosphane-κP)(2-hy-droxy-3,5,7-bromo-cyclo-hepta-2,4,6-trienonato-κ(2)O,O')copper(I)

The Cu(I) atom in the title compund, [Cu(C(7)H(2)Br(3)O(2))(C(19)H(17)P)(2)], is located on a twofold rotation axis; the 3,5,7-tribromo-tropolonate anion coordinates as a bidentate ligand with a bite angle of 76.42 (9)°. An intra-molecular C-H⋯O inter-action occurs. Within the crystal, extensive weak C-H⋯π inter-actions contribute to the herringbone pattern observed in the packing of the mol-ecules.

Bis[2-(methyl-amino)-troponato]copper(II)

In the title compound, [Cu(C₈H₈NO)₂], a strictly square-planar geometry about the Cu^II metal atom is observed. Substitution of an O atom with a methyl-functionalized N atom does not significantly alter the bond distances and angles in the copper(II) complex when compared with a similar bis­(troponato)copper(II) complex. π–π stacking is observed between the tropolone rings, with inter­planar distances of 3.5039 (16) and 3.2933 (15) Å, respectively. Additional stabilisation of the structure is accomplished through C—H⋯O hydrogen-bonding interactions.

Bis[tris-(4-fluoro-phen-yl)phosphine-κP](tropolonato-κO,O')copper(I)

The title compound, [Cu(C₇H₅O₂)(C₁₈H₁₂F₃P)₂], a copper(I) tris­(4-fluoro­phen­yl)phosphine tropolonate derivative, is the first tropolonate complex with fluorinated aryl­phosphine ligands. The Cu^I atom has a distorted tetra­hedral coordination; the most important geometrical parameters of the mol­ecule are: Cu—P = 2.2377 (10) and 2.2335 (15) Å, Cu—O = 2.084 (2) and 2.082 (2) Å, O—Cu—O = 77.72 (10)°, P—Cu—P = 128.82 (4)° and O—C—C—O = −2.1 (5)°.

(3,5,7-Tribromotropolonato-κ2O,O′)tris(triphenylphosphine-κP)silver(I)

The title compound, [Ag(C₇H₂Br₃O₂)(C₁₈H₁₅P)₃], a silver(I) derivative of 3,5,7-tribromo­tropolone, has three triphenyl­phosphine ligands coordinated to the silver centre, whereas the 3,5,7-tribromo­tropolonate anion coordinates as a bidentate ligand. The compound is an example of a five-coordinate silver complex containing a bidentate ligand.

Nitratotris(triphenyl-phosphine)copper(I) methanol solvate

The title compound, [Cu(NO₃)(C₁₈H₁₅P)₃]·CH₃OH, is a methanol solvate derivative of nitratotris(triphenyl­phos­phine)copper(I). The complex crystallizes with three triphenyl­phosphine ligands coordinated to the copper centre, with an O—H⋯O hydrogen bond observed between the nitrate ligand and the methanol solvent mol­ecule. The coordination around the Cu^I centre is distorted tetrahedral.

Bis(triphenyl-phosphine-κP)(tropolonato-κO,O')silver(I) dichloro-methane solvate

The title compound, [Ag(C(7)H(5)O(2))(C(18)H(15)P)(2)]·CH(2)Cl(2), crystallizes with a distorted tetra-hedral geometry about the Ag(I) atom, defined by two O atoms from one tropolonate ligand and two P atoms from two triphenyl-phosphine ligands. It is an example of a new type of tropolone derivative that has not been characterized via solid-state methods.