Siti Syaida Sirat

[μ-1,6-Bis(diphenyphosphan­yl)hexane-1:2κ2P:P′]deca­carbonyl-1κ3C,2κ3C,3κ4C-triangulo-triruthenium(0)

The title triangulo-triruthenium(0) compound, [Ru3(C30H32P2)(CO)10], contains a triangle of singly bonded Ru atoms. The phosphane-bridged Ru—Ru distance [2.9531 (2) Å] is significantly longer than the non-bridged Ru—Ru distances [2.8842 (2) and 2.8876 (2) Å] . The bis(diphenylphosphanyl)hexane ligand bridges the Ru—Ru bond. Each phosphane-substituted Ru atom bears one equatorial and two axial terminal carbonyl ligands, whereas the unsubstituted Ru atom bears two equatorial and two axial terminal carbonyl ligands. The dihedral angles between the benzene rings attached to each P atom are 72.75 (7) and 82.02 (7)°. The molecular structure is stabilized by an intramolecular C—H⋯O hydrogen bond involving a methylene group of the phosphane ligand and an axial carbonyl O atom, which generates an S(6) ring motif. In the crystal, molecules are linked via C—H⋯O hydrogen bonds into layers parallel to (100).

[μ-Bis(di-o-tolyl­phosphan­yl)methane-1:2κ2P:P′]nona­carbonyl-1κ3C,2κ3C,3κ3C-(triphenyl phosphite-3κP)-triangulo-triruthenium(0) chloro­form disolvate

In the title solvated triangulo-triruthenium compound, [Ru3(C18H15O3P)(C29H30P2)(CO)9]·2CHCl3, the bis(di-o-tolylphosphanyl)methane (dtpm) ligand bridges one of the Ru—Ru bonds and the monodentate phosphine ligand bonds to the third Ru atom. All the P atoms are equatorial with respect to the Ru3 triangle: each Ru atom also bears one equatorial and two axial terminal carbonyl ligands. The dihedral angles between the two benzene rings are 75.92 (10) and 78.95 (10)° for the two diphenylphosphanyl groups of the dtpm ligand. In the crystal, C—H⋯O hydrogen bonds link the molecules into chains along [010].

[μ-Bis(diphenyl-phosphan-yl)ethane-1:2κP:P']nona-carbonyl-1κC,2κC,3κC-[tris-(4-(meth-oxy-phen-yl)arsane-3κAs]-triangulo-triruthenium(0) chloro-form monosolvate.

The asymmetric unit of the title triangulo-triruthenium compound, [Ru3(C21H21AsO3)(C26H24P2)(CO)9]·CHCl3, consists of one molecule of the triangulo-triruthenium complex and one chloroform solvent molecule. The bis(diphenylphosphanyl)ethane ligand bridges an Ru—Ru bond and the monodentate arsane ligand bonds to the third Ru atom. Both the arsane and phosphine ligands are equatorial with respect to the Ru3 triangle. Additionally, each Ru atom carries one equatorial and two axial terminal carbonyl ligands. The three arsane-substituted benzene rings make dihedral angles of 52.72 (19), 63.03 (19) and 88.19 (19)° with each other. The dihedral angles between the two benzene rings are 85.8 (2) and 89.2 (2)° for the two diphenylphosphanyl groups. In the crystal, molecules are linked together into a three-dimensional network via intermolecular C—H⋯O hydrogen bonds. Weak intermolecular C—H⋯π interactions further stabilize the crystal structure.

[μ2-Bis(di­phenyl­phosphan­yl)hexa­ne]bis­[undeca­carbonyl-triangulo-triruthenium(3 Ru—Ru)] hexane monosolvate: crystal structure and Hirshfeld surface analysis

The title crystal features two Ru3(CO)11 fragments linked by a Ph2P(CH2)6PPh2 bridge, the latter with an all-trans conformation. The molecular packing features C—H⋯O, as well as C≡O⋯π(arene) interactions.

[μ-Bis(di-o-tolyl­phosphan­yl)methane-1:2κ2P:P′]nona­carbonyl-1κ3C,2κ3C,3κ3C-[tris­(2-chloro­eth­yl) phosphite-3κP]-triangulo-triruthenium(0)

In the title compound, [Ru3(C6H12Cl3O3P)(C29H30P2)(CO)9], the bis(di-o-tolylphosphanyl)methane ligand bridges one Ru—Ru bond and the monodentate phosphite ligand bonds to the third Ru atom. Both ligands are equatorial with respect to the Ru3 triangle. Each Ru atom bears one equatorial and two axial terminal carbonyl ligands. The dihedral angles between the two benzene rings in the diphenylphosphanyl groups are 79.52 (10) and 69.88 (10)°. In the crystal, molecules are linked via C—H⋯O hydrogen bonds into chains along [100].

[μ-Bis(diphenyl-phosphan-yl)ethane-1:2κP:P']nona-carbonyl-1κC,2κC,3κC-(triphenyl-stibine-3κSb)-triangulo-triruthenium(0).

The asymmetric unit of the title triangulo-triruthenium compound, [Ru3(C26H24P2)(C18H15Sb)(CO)9], consists of two crystallographically independent molecules, A and B. The bis(diphenylphosphanyl)ethane ligand bridges an Ru—Ru bond and the monodentate stibine ligand bonds to the third Ru atom. Both the stibine and phosphine ligands are equatorial with respect to the Ru3 triangle. Additionally, each Ru atom carries one equatorial and two axial terminal carbonyl ligands. The three stibine-substituted benzene rings make dihedral angles of 38.7 (3), 71.5 (3) and 70.0 (3)° with each other in molecule A whereas these angles are 83.9 (3), 88.2 (3) and 56.8 (3)° in molecule B. Similarly, the dihedral angles between the two benzene rings are 80.7 (3) and 87.6 (3)° for the two diphenylphosphanyl groups in molecule A and 84.0 (3) and 72.6 (4)° in molecule B. In the crystal, molecules are linked into tetramers via intermolecular C—H⋯O hydrogen bonds. Weak intermolecular C—H⋯π interactions further stabilize the crystal structure.

(Benzyl­diphenyl­phosphane-1κP)[μ-bis(diphenylphosphan­yl)methane-2:3κ2P:P′]nona­carbonyl-1κ3C,2κ3C,3κ3C-triangulo-triruthenium(0)

The asymmetric unit of the title compound, [Ru3(C19H17P)(C25H22P2)(CO)9], consists of two independent molecules. The bis(diphenylphosphanyl)methane ligand bridges an Ru—Ru bond and the benzyldiphenylphosphane ligand binds to the third Ru atom. The Ru—Ru bond cis to the benzyldiphenylphosphane ligand is the longest of the three Ru—Ru bonds in both molecules. In the crystal, molecules are linked by C—H⋯O hydrogen bonds, forming layers parallel to the ac plane. C—H⋯π contacts further stabilize the crystal packing.

[μ-Bis(diphenyl-arsino)methane-1:2κ(2)As:As]deca-carbonyl-1κ(3)C,2κ(3)C,3κ(4)C-triangulo-triosmium(0).

The title compound, [Os3(C25H22As2)(CO)10], contains a triangle of singly bonded Os atoms; both arsine ligands are equatorial with respect to the Os3 triangle. Each arsine-substituted Os atom bears one equatorial and two axial terminal carbonyl ligands, whereas the unsubstituted Os atom bears two equatorial and two axial terminal carbonyl ligands. The dihedral angles between the two benzene rings in the diphenylarsino groups are 67.42 (16) and 61.99 (16)°. In the crystal, molecules are linked via C—H⋯O hydrogen bonds into zigzag chains propagating along [010].

Tris(biphenyl-4-yl)arsane

The asymmetric unit of title compound, C36H27As, contains two crystallographically independent molecules, A and B, with similar conformations. The two phenyl rings of each biphenyl unit are twisted slightly away from each other with dihedral angles of 6.0 (2), 27.7 (3) and 33.4 (2)° in molecule A and 5.7 (3), 27.5 (2) and 33.0 (2)° in molecule B. The As-bonded phenyl rings make dihedral angles of 54.9 (2), 76.0 (2) and 88.2 (2),° with each other in molecule A, and 60.3 (2), 78.1 (2) and 79.5 (2)° in molecule B. In the crystal, the molecules are stacked down the b axis. Weak intermolecular C—H⋯π interactions stabilize the crystal structure. The crystal studied was a racemic twin, the refined ratio of twin components being 0.461 (7):0.539 (7).

[μ-Bis(diphenyl-phosphan-yl)methane-1:2κP:P']nona-carbonyl-1κC,2κC,3κC-[tris-(biphenyl-4-yl)arsane-3κAs]-triangulo-triruthenium(0).

In the title triangulo-triruthenium compound, [Ru3(C36H27As)(C25H22P2)(CO)9], the bis(diphenylphosphanyl)methane ligand bridges an Ru—Ru bond and the monodentate arsine ligand bonds to the third Ru atom. Both the arsine and phosphine ligands are equatorial with respect to the Ru3 triangle. In addition, each Ru atom carries one equatorial and two axial terminal carbonyl ligands. In each biphenyl unit, the phenyl rings are twisted from each other, making dihedral angles of 51.22 (18), 42.94 (16) and 26.95 (16)°. The arsine-substituted phenyl rings make dihedral angles of 61.22 (15), 87.17 (15) and 83.32 (15)° with each other. The dihedral angles between the two benzene rings are 85.52 (18) and 81.77 (15)° for the two diphenylphosphanyl groups, respectively. In the crystal, molecules are linked into dimers by intermolecular C—H⋯O hydrogen bonds. Weak intermolecular C—H⋯π and π–π [centroid–centroid distance = 3.6981 (18) Å] interactions stabilize the crystal structure.