Isolation of a new nonaborane cluster form: arachno-B(9)H(11).(PPh(3))(2).
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Journal Article↗
Biomedical subjects
N P Rath
Publications and source records attributed to N P Rath.
Silver(I) carboxylates: versatile inorganic analogs of carboxylic acids for supramolecular network formation.
Dimeric motifs formed by silver(I) carboxylates, illustrated here by the unit Ag2(CF3CO2)2, resemble the well known dimerization of carboxylic acids, i.e. 'H2(RCO2)2', but exhibit greater flexibility, while permitting further elaboration into neutral coordination networks through linkage of the silver centres via ditopic ligands.
Journal Article↗
The nido-osmaboranes [2,2,2-(CO)(PPh(3))(2)-nido-2-OsB(5)H(9)] and [6,6,6-(CO)(PPh(3))(2)-nido-6-OsB(9)H(13)].
The structural characterization of the osmahexaborane 2-carbonyl-2,2-bis(triphenylphosphine)-nido-2-osmahexaborane(9), [Os(B(5)H(9))(C(18)H(15)P)(2)(CO)], (I), a metallaborane analogue of B(6)H(10), confirms the structure proposed from NMR spectroscopy. The structure of the osmadecaborane 6-carbonyl-6,6-bis(triphenylphosphine)-nido-6-osmadecaborane(13), [Os(B(9)H(13))(C(18)H(15)P)(2)(CO)], (IV), is similarly confirmed. The short basal B-B distance of 1.652 (8) A in (I), not bridged by an H atom, mirrors that in the parent hexaborane(10) [1.626 (4) A].
Journal Article↗
Oxidative cyclisation of cinnamyl ethers mediated by CAN: a stereoselective synthesis of 3,4-trans disubstituted tetrahydrofuran derivatives.
The oxidative cyclisation of cinnamyl ethers mediated by cerium(IV) ammonium nitrate results in the stereospecific formation of 3,4-trans disubstituted tetrahydrofuran derivatives in moderate to good yields.
Journal Article↗
Two iridanonaborane compounds.
Two iridanonaborane compounds, 4-carbonyl-5,6:8,9-bis-muH-4-hydrido-4-bis(trimethylphosphine)-4-irida-arachno-nonaborane(12), [IrH(B8H12)(C3H9P)2(CO)], (Ia), and 2-carbonyl-2,5:6,9:8,9-tri-muH-4-chloro-2-bis(trimethylphosphine)-2-irida-nido-nonaborane(11), [Ir(B8H10Cl)(C3H9P)2(CO)], (II), are described. Compound (II) shows evidence of effective chlorine-substituent migration during its formation.
Journal Article↗
[Ethylene-1,2-bis(diphenylphosphine)-P,P']dinitratoplatinum(II) and cis-bis[(diphenylphosphinomethyl)-diphenylphosphine oxide-O,P]-platinum (II) dinitrate dihydrate.
In [Pt(dppe)(NO(3))(2)], where dppe is ethylene-1,2-bis(diphenylphosphine) (C(26)H(24)P(2)), the Pt atom is coordinated by the two P atoms and by two O atoms of the two nitrate ions. The molecule has a distorted square-planar geometry, with one of the nitrate groups directed on each side of the plane. The cation in cis-[Pt(dppmO-O,P)(2)](NO(3))(2) x 2H(2)O, where dppmO is bis(diphenylphosphinomethyl)diphenylphosphine oxide (C(25)H(22)OP(2)), comprises two five-membered chelate rings, each dppmO ligand being coordinated to platinum through one P atom and the O atom. The larger P--Pt--P angle of 102.25 (4) degrees is due to steric interactions between the two phenyl groups on each P atom.
Journal Article↗
Discovery of chiral N,N-disubstituted trifluoro-3-amino-2-propanols as potent inhibitors of cholesteryl ester transfer protein.
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Carrier Proteins↗
[([eta]5-C5R5)TiCl2([eta]5-C5H4SiMe2)]2O·nCH2Cl2 (R = H, Me; n = 1, 0)
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Journal Article↗
Arene dioxides of substituted pyrenes: synthesis and X-ray structural studies.
The arene dioxides of five 1-substituted pyrenes have been synthesized using dimethyldioxirane. The diasteroisomeric distribution of the dioxides has been determined. X-ray crystallographic structures of the dioxides have also been obtained. These structures show that for the cis dioxides the molecular structures show a departure from planarity, the extent of which is dependent on the substituent.
Carcinogens↗
1-Acetyl-3-hydroxyadamantane and 1-carboxy-3-hydroxyadamantane.
The crystal structures of the adamantane derivatives, 1-acetyl-3-adamantanol, C12H18O2, (4), and 3-hydroxyadamantane-1-carboxylic acid, C11H16O3, (5), have been determined by X-ray diffraction. Both structures show extensive intermolecular hydrogen bonding involving the hydroxyl and acetyl groups in compound (4), and the hydroxyl and carboxyl groups in compound (5).
Adamantane↗
Chiral alpha -hydroxy acids: racemic 2-hydroxy-2,3,3-trimethylbutanoic acid and 2-hydroxy-2-trimethylsilylpropanoic acid.
Both C7H14O3 and C6H14O3Si crystallize as racemates from acetone solution, the former incorporating water of crystallization (C7H14O3.0.5H2O). The crystal structures display extensive intermolecular hydrogen bonding involving the hydroxy and carboxylic acid groups to give polymeric networks.
Butyrates↗