27258-73-7Relevant academic research and scientific papers
Poly(p-phenylenediethynylene phosphane): A Phosphorus-Containing Macromolecule that Displays Blue Fluorescence Upon Oxidation
Rawe, Benjamin W.,Gates, Derek P.
, p. 11438 - 11442 (2015)
Despite the challenges associated with their synthesis, hybrid inorganic-organic polymers featuring heavier main-group elements spaced by π-conjugated organic functionalities have garnered considerable recent attention due to their chemical functionality and novel photophysical properties. We have succeeded in the preparation of an unprecedented organophosphorus polymer possessing functional phosphane-di-yne moieties in the main chain. Namely, poly(p-phenylenediethynylene phosphane) (PPYP) is prepared using a nickel(II)-catalyzed P-C bond-forming reaction. The hexyl-substituted PPYPs are solution processible and have been thoroughly characterized (molecular weight, Mw, ca. 104Da vs. polystyrene; degree of polymerization, DP, ca. 10). Remarkably, although PPYP shows very weak emission upon irradiation with UV light, its oxide shows blue "turn-on" fluorescence. The present discovery bridges the areas of main-group and polymer science and opens the door to a new class of σ-π-conjugated macromolecules with unique chemical functionality.
1,2-dihydrophosphete: A platform for the molecular engineering of electroluminescent phosphorus materials for light-emitting devices
Chen, Hui,Pascal, Simon,Wang, Zuoyong,Bouit, Pierre-Antoine,Wang, Zisu,Zhang, Yinlong,Tondelier, Denis,Geffroy, Bernard,Reau, Regis,Mathey, Francois,Duan, Zheng,Hissler, Muriel
, p. 9784 - 9793 (2014)
The discovery and molecular engineering of novel electroluminescent materials is still a challenge in optoelectronics. In this work, the development of new π-conjugated oligomers incorporating a dihydrophosphete skeleton is reported. Variation of the substitution pattern of 1,2-dihydrophosphete derivatives and chemical modification of their P atoms afford thermally stable derivatives, which are suitable emitters to construct organic light-emitting diodes (OLEDs). The optical and electrochemical properties of these new P-based oligomers have been investigated in detail and are supported by DFT calculations. The OLED devices exhibit good performance and current-independent CIE coordinates. Getting the blues: New π-conjugated oligomers incorporating a dihydrophosphete skeleton have been developed (see figure). Variation of the substitution pattern of 1,2-dihydrophosphete derivatives and chemical modification of their P atoms afford thermally stable derivatives, which are suitable emitters to construct efficient blue organic light-emitting diodes (OLEDs).
Reactions of (Me2C)(Me2Si)[(η5-C 5H3)Mo(CO)3]2 with phosphanylalkynes: Rearrangement of phosphanylalkynes into phosphido-substituted vinylidenyl ligands by cleavage of the P-C(al
Li, Bin,Xu, Shansheng,Song, Haibin,Wang, Baiquan
scheme or table, p. 5494 - 5504 (2009/05/06)
This article deals with the thermal reactions of the doubly bridged bis(cyclopentadienyl) dinuclear molybdenum complex (Me2C)(Me 2Si)[(η5-C5H3)Mo(CO) 3]2 (1) with a series of pho
A Convenient and Direct Route to Phosphinoalkynes via Copper-Catalyzed Cross-Coupling of Terminal Alkynes with Chlorophosphanes
Afanasiev, Vladimir V.,Beletskaya, Irina P.,Kazankova, Marina A.,Efimova, Irina V.,Antipin, Mikhail U.
, p. 2835 - 2838 (2007/10/03)
A new efficient method to obtain various alkynylphosphanes R nP(≡R′)3-n [R = Ar, Alk, alkoxy, amido R′ = Ar, Het, Alk, CH2Z (Z = OMe, NMe2), n = 0-2] has been developed by means of cross-coupling reaction of chl
New Approach to Phosphinoalkynes Based on Pd- and Ni-Catalyzed Cross-Coupling of Terminal Alkynes with Chlorophosphanes
Beletskaya, Irina P.,Afanasiev, Vladimir V.,Kazankova, Marina A.,Efimova, Irina V.
, p. 4309 - 4311 (2007/10/03)
(Equation presented) The first example of direct phosphination of terminal alkynes with chlorophosphanes catalyzed by Ni or Pd complexes is described. Both aromatic and aliphatic terminal acetylenes undergo the coupling reaction to give corresponding coup
Coordination Ability of Alkynylphosphines RnP(CC-R')3-n
Lang, Heinrich,Zsolnai, Laszlo
, p. 259 - 264 (2007/10/02)
Alkynylphosphines RP(CC-R')2 (2) react with one equivalent of octacarbonyldicobalt to yield selectively the η2-? sideon-coordinated alkyne complexes (R)(R'-CC)P2-CC-R')Co2(CO)6> (6); with another equivalent of Co2(CO)8 the dicoordinated compounds (R)P2-CC-R')Co2(CO)6>2 (7) are obtained. 7 may also be synthesized directly by the reaction of 2 with two equivalents of Co2(CO)8.However, PC-Ph)3 yields with two equivalents of Co2(CO)8 the cyclic Co2P2C2 system C)(R')P2-CC-Ph)Co2(CO)5>>2 (4) 2-CC-Ph)Co2(CO)6>.Decarbonylation of 6a gives the six-membered cyclic compound C)P2-CC-Ph)Co2(CO)5>>2 (8), while 6b yields the cluster Co3(CO)9(μ3-PtBu) (9).The structure of (tBu)P2-CC-H)Co2(CO)6>2 (7b) is elucidated by an X-ray analysis.
CC Stretching Frequencies and δ31P Values of Phosphanes P(CCC6H5)n(C6H5)3-n
Hengefeld, Axel,Nast, Reinhard
, p. 2035 - 2036 (2007/10/02)
The νCC frequencies and the chemical shifts δ31P of the title compounds are reported and discussed.The δ31P values depend on the number n of the phenylethynyl groups (n = 3,2,1,0) according to the equation δ31P = -(27.60 * n +5.72).The shielding of the
