The photo-induced reaction of (η7-C7H7)V(CO)3 with phosphanes (L) leads generally to monosubstituted derivatives of the type (η7-C7H7)V(CO)2(L) (1) (L = PMe3 (1a), PPh3 (1b), PnBu3 (1c), P(OMe)3 (1d), P(OEt)3 (1e), P(OMe)2(OSiMe3) (1f) and P(NMe2)3 (1g)). The synthesis may be conducted either ...

A long-wavelength absorption band in the UV spectra of compounds of the typecis-and trans-bis(phenyl)bis(tri-n-butylphosphane) platinum(II) and cis-bis-(phenyl)bis(tris[4-(dimethylamino)phenyl]phosphane)platinum(II) is probably due to the influence of substituents in the phenyl rings in the form...

The title compounds are prepared for the first time by reaction of 2,4,6-tris(tert-butyl)phenylchlorophosphane with Li-resp. Mg-acetylides.

The structure of P[P(S)Me2]3 (IV) was determined by X-ray crystallography at − 95°C. It crystallises in the space group P21 / n, with cell constants a 702.8(5), b 1708.9(10), c 1285.0(8) pm, β 101.99(6)° (at − 95°C) and Z = 4. The pyramidal molecule displays a mean PP bond length of 222.6(...

Tetradec-1-ene as a representative of higher olefins is hydroformylated in an aqueous—organic two-phase system by means of a water-soluble catalyst consisting of Rh4(CO)12 and surface active sulfobetaine derivatives of tris(2-pyridyl)phosphine. The surfactant complex ligands are obtained by sul...

At low temperatures the benzylidene complexes (C))5WC(R)H (1) [R = C6H5 (a), C6H4Me-p (b)] add PPhCl2 at the carbene carbon to form the ylide complexes (CO)5WC(R)HPPhCl2 (3). These isomerize at room temperature to give the phosphine complexes (CO)5WP(Ph)ClC(R)(H)Cl (4). The rearrangeme...

The primary objective of this study was to enhance the antitumor efficacy of a model cancer vaccine through co-delivery of pentaerythritol lipid A (PELA), an immunological adjuvant, and a model tumor antigen, ovalbumin (OVA), separately loaded into polyanhydride particles (PA). In vitro experime...

2,3,3,3-Tetrafluoroprop-1-ene (HFO1234yf) is recently recognized as a new generation refrigerant to replace R134a in automotive air-conditioning system and other refrigeration applications. The knowledge of phase equilibrium property for refrigerant with lubricant oil is therefore interested in ...

Isobutane (R600a) is widely used in small capacity refrigeration equipment, especially domestic refrigerator. Knowledge of refrigerant absorption in lubricant oil is one of the essential factors for designing refrigeration system and choosing suitable oil. In this work, the liquid mole fractions...

The phase behavior of refrigerant with lubricant oil is an important issue for designing the refrigeration system. R1234ze(E) was proposed as a possible replacement for R134a recently. In this work, the p–T–x data of R1234ze(E) with pentaerythritol tetrahexanoate (PEC6) and pentaerythritol tet...

Abietic acid is an abundant renewable natural resource. Pentaerythritol rosin ester (PRE), which is synthesized by esterification of abietic acid and pentaerythritol, is notably environmentally friendly. In our study, we first report PRE as an environmentally friendly multifunctional additive in...

The solubilities of dimethyl ether (DME) in pentaerythritol tetrabutyrate (PEC4) and in pentaerythritol tetrapentanoate (PEC5) between T = (283.15 and 353.15) K have been measured by isochoric saturation method. The experimental solubility data were correlated by the Peng–Robinson equation of s...

The present work investigates the effect of addition of Al2O3 nanoparticles on thermal degradation kinetics of pentaerythritol (PE), a solid-solid phase change material, using a Thermogravimetry analyzer. For this TGA experiments were conducted using PE added 0.1% and 1% weight fractions of Al2O...

In the present study, green synthesis of pentaerythritol monoricinoleate (PEMR) was carried out using Candida antarctica lipase B immobilized on hydrophobic adsorbent via interfacial activation. Various reaction parameters such as reaction time, organic solvent, molar ratio, the enzyme load, and...

This paper presents the effect of adding indium, a low melting metal on thermal energy storage performance of pentaerythritol in IC engine exhaust gas heat recovery application. Charging and discharging experiments were conducted using pentaerythritol added with 0.1, 0.5 and 1.0 wt. % of indium ...

Although 2,a-diethyl-1,3-propanediol (Prenderol®) is a compound of pharmacologic interest, it is difficult to use clinically because of its short duration of action. A series of 23 compounds related to 2,2-diethyl-1,3-propanediol and 2,2-diethyl malonic acid have been screened for anticonvulsant...

In this study, we attempted to achieve efficient synthesis of (S)-form 2-(hydroxymethyl)-2-methylbutanoic acid (HMMBA) from 2-ethyl-2-methyl-1,3-propanediol (EMPD) using an enzymatic approach. Agromyces sp. E2 was found to produce HMMBA from soil samples through enrichment culture using EMPD as ...

Publisher SummaryThe problem of global climate change due to greenhouse gases is important for development of energy and power technology. The study for removing carbon dioxide (CO2) for refinery gases has been in many ways. The CO2 absorption into a liquid agent is the most commonly used proces...

The solubilities of carbon dioxide in aqueous solutions of 2-amino-2-ethyl-1,3-propanediol (AEPD) were measured at 313.15, 323.15, and 333.15 K over the partial pressure range of carbon dioxide from 1 to 3000 kPa. The concentrations of aqueous AEPD solutions were 10 and 30 mass%. The solubilitie...

The molar heat capacities of a primary sterically hindered amine 2-amino-2-ethyl-1,3-propanediol (AEPD) and its aqueous solutions, in the whole range of concentrations, were measured at temperatures from 303.15 K to 353.15 K by heat flow differential scanning calorimetry. The molar heat capaciti...