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Carbon-yl{3,3'-di-tert-butyl-5,5'-dimeth-oxy-2,2'-bis-[(4,4,5,5-tetra-methyl-1,3,2-dioxaphospho-lan-2-yl)-oxy]biphenyl-?(2) P,P'}hydrido(triphenyl-phosphane-?P)rhodium(I) diethyl ether tris-olvate.

ABSTRACT: In the title compound, [RhH(C74H68O8P2)(C18H15P)(CO)]·3C4H10O, the CHP3 coordination set at the Rh(I) ion is arranged in a distorted trigonal-bipyramidal geometry with the P atoms adopting equatorial coordination sites and the C atom of the carbonyl ligand as well as the H atom adopting the axial sites. The asymmetric unit contains two very similar mol-ecules of the rhodium complex, two half-occupied diethyl ether mol-ecules and further diethyl ether solvent mol-ecules which could not be modelled successfully. Therefore contributions of the latter were removed from the diffraction data using the SQUEEZE procedure in PLATON [Spek (2009 ?). Acta Cryst. D65, 148-155].

SUBMITTER: Selent D

PROVIDER: S-EPMC3588287 | biostudies-other | 2013 Jan

REPOSITORIES: biostudies-other

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cis-Dichlorido[2,3-dimethyl-3-(4,4,5,5-tetra-methyl-1,3,2?(5)-dioxaphospho-lan-2-yl-oxy)butan-2-olato-?(2)O,P]oxido(triphenyl-phosphane-?P)rhenium(V).

Project description:The title compound, cis-[Re(C(12)H(24)O(4)P)Cl(2)O(C(18)H(15)P)], was prepared from the analogous trans isomer [G?owiak et al. (2000 ?). Polyhedron, 19, 2667-2672] by a trans-cis isomerization reaction. The Re(V) atom adopts a distorted octa-hedral coordination geometry. Besides being coordinated by the oxide and the butano-late O atoms, the Re(V) atom is coordinated by a pair of chloride ligands and two P atoms in cis positions with respect to each other. In the crystal, adjacent mol-ecules are linked by weak C-H?Cl inter-actions, forming a three-dimensional network.

| S-EPMC3344344 | biostudies-literature

4,4,5,5-Tetra-methyl-1,3,2?-dioxa-phospho-lan-2-one.

Project description:The five-membered ring in the title compound, C(6)H(13)O(3)P, exists in an envelope conformation with one of the ring C atoms at the flap position. The coordination geometry around the P atom is a distorted tetra-hedron. The crystal structure is stabilized by several weak C-H?O and P-H?O hydrogen bonds, forming a three-dimensional network.

| S-EPMC3213595 | biostudies-literature

2,4,5-Triphenyl-1,3,2-dioxa-phospho-lan-2-one.

Project description:The dioxaphospho-lane ring in the title compound, C(20)H(17)O(3)P, adopts an envelope conformation about one of the ring carbons. The benzene rings of the compound do not form face-to-face ?-? inter-actions, instead weak C-H?? inter-actions occur between adjacent mol-ecules. The methine H atoms on the dioxaphospho-lane ring form weak C-H?O hydrogen bonds to the oxide group of an adjacent mol-ecule.

| S-EPMC3152137 | biostudies-literature

Crystal structure of 5,10,15-triphenyl-20-(4,4,5,5-tetra-methyl-1,3,2-dioxaborolan-2-yl)porphyrin.

Project description:In the title compound, C44H37BN4O2, the dihedral angle between the plane of the porphyrin macrocycle ring system [r.m.s. deviation = 0.159?(1)?Å] and those of three phenyl rings are 66.11?(4), 74.75?(4) and 57.00?(4)°. The conformational distortion is characterized by a mixture of ruffled, saddle and in-plane distortion modes. In the crystal, the porphyrin mol-ecules are linked by C-H?? inter-actions into supra-molecular chains running along the a-axis direction. A pair of bifurcated N-H?(N,N) hydrogen bonds occur across the central region of the macrocycle.

| S-EPMC4257212 | biostudies-literature

Dicarbonyl-{3,3'-di-tert-butyl-5,5'-di-meth-oxy-2,2'-bis-[(4,4,5,5-tetra-phenyl-1,3,2-dioxa-phospho-lan-2-yl)-oxy-?P]biphen-yl}hydridorhodium(I) diethyl ether monosolvate.

Project description:In the title compound, [Rh(C(74)H(68)O(8)P(2))H(CO)(2)]·C(4)H(10)O, the C(2)HP(2) coordination set at the Rh(I) ion is arranged in a distorted trigonal-planar geometry with one P atom of the diphosphite mol-ecule and the H atom adopting the axial coordination sites.

| S-EPMC3343872 | biostudies-other

2,2'-(3,3'-Dihexyl-2,2'-bithio-phene-5,5'-di-yl)bis-(4,4,5,5-tetra-methyl-1,3,2-dioxaborolane).

Project description:In the title mol-ecule, C(32)H(52)B(2)O(4)S(2), the two thio-phene rings are twisted by 67.34 (2)°. In the crystal, weak C-H⋯O hydrogen bonds link mol-ecules related by translation along the a axis into chains.

| S-EPMC3239133 | biostudies-literature

2-(4-Ferrocenylphen-yl)-4,4,5,5-tetra-methyl-1,3,2-dioxaborolane.

Project description:In the title compound,, [Fe(C(5)H(5))(C(17)H(20)BO(2))], the two near parallel cyclo-penta-dienyl rings of the ferrocene group are eclipsed. The benzene ring is tilted with respect to the attached cyclo-penta-diene ring by 17.0 (1)° and by 24.2 (1)° with respect to the dioxaborolane ring. The mol-ecules assemble in the crystal via C-H⋯π inter-actions between the cyclo-penta-dienyl H atoms and the benzene and cyclo-penta-dienyl rings of neighbouring mol-ecules.

| S-EPMC2959994 | biostudies-literature

trans-Carbonyl-chloridobis[tris-(4-meth-oxy-phen-yl)phosphane-?P]rhodium(I).

Project description:The title complex, [RhCl(C(21)H(21)O(3)P)(2)(CO)], is a rhodium analogue to Vaska's complex with para-meth-oxy substituents on the six phosphan-yl-aryl units. Two independent mol-ecules are present in the unit cell, with their metal atoms both located on an inversion centre. This causes the chloride and carbonyl ligands to exhibit a positional disorder in a 0.5:0.5 ratio. The two Rh(I) atoms exhibit a distorted square-planar geometry. There are a few weak intra-molecular C-H?X inter-actions (X = O, Cl). Inter-estingly, no significant inter-molecular inter-actions are found between the two independent mol-ecules.

| S-EPMC3238621 | biostudies-literature

7-[(5,5-Dimethyl-2-oxido-1,3,2-dioxaphosphinan-2-yl)-oxy]-4-methyl-2H-chromen-2-one.

Project description:The title compound, C(15)H(17)O(6)P, was obtained from a reaction of 4-methyl-7-hy-droxy-coumarin and 2-chloro-5,5-dimethyl-1,3,2-dioxaphosphinane 2-oxide. There are two mol-ecules in the asymmetric unit in which the benzopyran ring system is almost planar [r.m.s. deviation for each molecule = 0.003?Å]. In the crystal, C-H?O hydrogen bonds and ?-? stacking inter-actions [with centroid-centroid distances of 3.743?(3) and 3.727?(3)?Å] link the two mol-ecules. The dioxaphospho-rinane ring adopts a chair conformation in both asymmetric molecules.

| S-EPMC3379479 | biostudies-literature

Crystal structure of (E)-1-{2-[(5,5-dimethyl-1,3,2-dioxaphosphinan-2-yl)-oxy]naphthalen-1-yl}-N-(4-fluoro-phen-yl)methanimine.

Project description:In the title compound, C22H21FNO3P, a 1,3,2-dioxaphosphinan-2-yloxy derivative, three O atoms are bonded in a trigonal-pyramidal manner to the P atom. The exocyclic P-O bond is significantly longer than the two endocyclic P-O bonds, viz. 1.6678 (12) Å compared to 1.6046 (13) and 1.6096 (12) Å. The six-membered ring which includes the P atom has a chair conformation. The fluoro-phenyl ring is inclined to the naphthalene ring system by 24.42 (7)°. In the crystal, mol-ecules are linked via C-H⋯π inter-actions, forming slabs lying parallel to (10-1).

| S-EPMC4331876 | biostudies-literature

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