Synthesis and Solid-State Behavior of Host–Guest Carbonyl Rh(I) Polymers Assembled through Bidentate Phosphine Ligands

2008 ◽  
Vol 8 (3) ◽  
pp. 854-862 ◽  
Author(s):  
Nikolina Janjic ◽  
Giulia Peli ◽  
Luigi Garlaschelli ◽  
Angelo Sironi ◽  
Piero Macchi
Keyword(s):  
Solid State ◽  
Phosphine Ligands ◽  
State Behavior ◽  
Bidentate Phosphine

Syntheses and photoluminescence of copper(i) halide complexes containing dimethylthiophene bidentate phosphine ligands

2019 ◽  
Vol 43 (34) ◽  
pp. 13408-13417 ◽  
Author(s):  
Qiong Wei ◽  
Hong-Ting Chen ◽  
Li Liu ◽  
Xin-Xin Zhong ◽  
Lei Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Room Temperature ◽  
Green Emission ◽  
Phosphine Ligands ◽  
Bluish Green ◽  
Bidentate Phosphine ◽  
Halide Complexes

Neutral dinuclear four-coordinate Cu(i) halide complexes containing thiophene exhibit intense bluish green to yellow green emission in the solid state at room temperature.

Solution and Solid State Behavior of Poly(N-Acetyliminoethylene)–Poly(Methacrylic Acid) Interpolymer Complexes

1997 ◽  
Vol 34 (8) ◽  
pp. 1395-1412
Author(s):  
G. David ◽  
J. M. Buisine ◽  
A. Daoudi ◽  
C. Kolinski ◽  
A. Stoleriu ◽  
...  
Keyword(s):  
Solid State ◽  
Methacrylic Acid ◽  
State Behavior ◽  
Interpolymer Complexes

Mono- and Bidentate Phosphine Ligands in the Palladium-Catalyzed Methyl Acrylate Dimerization

2003 ◽  
Vol 345 (3) ◽  
pp. 402-409 ◽  
Author(s):  
Jörg Zimmermann ◽  
Igor Tkatchenko ◽  
Peter Wasserscheid
Keyword(s):  
Methyl Acrylate ◽  
Phosphine Ligands ◽  
Palladium Catalyzed ◽  
Bidentate Phosphine

Gold(I) Complexes Bearing P∩N-Ligands: An Unprecedented Twelve-membered Ring Structure Stabilized by Aurophilic Interactions

2009 ◽  
Vol 64 (11-12) ◽  
pp. 1513-1524 ◽  
Author(s):  
Uwe Monkowius ◽  
Manfred Zabel ◽  
Michel Fleck ◽  
Hartmut Yersin
Keyword(s):  
Solid State ◽  
Ring Structure ◽  
Phosphine Ligands ◽  
X Ray Crystallography ◽  
Aggregation Pattern ◽  
Elemental Analyses ◽  
High Yields ◽  
First Time ◽  
Solid State Structures ◽  
Aurophilic Interactions

The P∩N-ligands Ph2Pqn, 1, Ph2 Piqn, 2, Ph2 Ppym, 3, and the As∩N-ligands Ph2Asqn, 4, Ph2Asiqn, 5, (Ph = phenyl, qn = 8-quinoline, iqn = 1-isoquinoline, pym = 2-pyrimidine) have been synthesized, the ligands 2 and 5 for the first time. Their ligand properties were probed by the synthesis of gold(I) complexes. Reaction with (tht)AuCl (tht = tetrahydrothiophene) yielded the chlorogold complexes Ph2RP-Au-Cl (R = qn, 6; iqn, 7; pym, 8) and Ph2RAs-Au-Cl (R = qn, 9; iqn, 10) in high yields. Further treatment of 7 and 8 with one equivalent of AgBF4 provided the complexes [(Ph2Piqn)Au]BF4, 11, [(Ph2Ppym)Au]BF4, 12, and [(Ph2Piqn)Au(tht)]BF4, 14. For comparison, the previously reported complex [(Ph2Ppy)Au]BF4 (py = pyridine), 13, was re-investigated. The compounds were characterized by elemental analyses, mass spectrometry and NMR spectroscopy. In addition, the solid-state structures of 2, 3, 6, 7, 9 - 14 have been determined by X-ray crystallography. The chloro-gold compounds crystallize in the common rod-like structure known from R3EAuCl (R = aryl, E = P, As) complexes without further aggregation via aurophilic interactions. In all cases the phosphine acts as a monodentate ligand. In the solid state compounds 11 - 13 feature an unprecedented cyclic trinuclear aggregation pattern, in which the Au(I) atoms are linearly coordinated by the bridging phosphine ligands forming a cyclic (P-Au-N)3 arrangement. The resulting twelvemembered ring is further stabilized by Au · · · Au interactions. Due to the presence of these Au · · · Au contacts, 11 - 13 are emissive in the solid state but not in solution

The Tetrakis(trimethylphosphine)cobalt Anion

1977 ◽  
Vol 32 (2) ◽  
pp. 138-143 ◽  
Author(s):  
Reinhard Hammer ◽  
Hans-Friedrich Klein
Keyword(s):  
Solid State ◽  
Alkali Metals ◽  
Reducing Agents ◽  
Phosphine Ligands ◽  
Organic Halides ◽  
Oxidative Additions ◽  
Reversible Formation ◽  
Inorganic And Organic

Reduction of paramagnetic L4Co (L = (CH3)3P) (d9) by alkali metals affords salts of L4Co- (d10). These are strong reducing agents, powerful bases and very able nucleophiles. They rapidly exchange three of their phosphine ligands for CO. Their reactions with a variety of inorganic and organic halides are shown to be effectively oxidative additions. From the distinct thermochromic behaviour of these salts both in the solid state and in solution a reversible formation involving different states of solvation is deduced.

Coordination chemistry of bidentate phosphine ligands with hydrogen-bonding arms: Picket-fence rhodium complexes

Polyhedron ◽  
2014 ◽  
Vol 69 ◽  
pp. 156-159 ◽  
Author(s):  
Ilknur Babahan ◽  
James T. Engle ◽  
Nishant Kumar ◽  
Christopher J. Ziegler ◽  
Li Jia
Keyword(s):  
Hydrogen Bonding ◽  
Coordination Chemistry ◽  
Phosphine Ligands ◽  
Rhodium Complexes ◽  
Picket Fence ◽  
Bidentate Phosphine

Influence of mixing energy on the solid-state behavior and clay fraction threshold of PA12/C30B® nanocomposites

2019 ◽  
Vol 39 (6) ◽  
pp. 565-572
Author(s):  
Nourredine Aït Hocine ◽  
Pascal Médéric ◽  
Hanaya Hassan
Keyword(s):  
Solid State ◽  
Mechanical Energy ◽  
Three Dimensional ◽  
Clay Fraction ◽  
Critical Value ◽  
Processing Conditions ◽  
State Behavior ◽  
Mixing Energy ◽  
End Use ◽  
First Time

Abstract This study focuses on the influence of mixing energy on the solid-state behavior and clay fraction threshold of nanocomposites. Thus, three polyamide12/clay (PA12/C30B®) nanocomposites exhibiting different nanostructures were prepared from three sets of processing conditions. Then, thermal and dynamical viscoelastic properties of these nanocomposites were analyzed, in relationship with the material nanostructure and processing conditions. For the first time, the solid-state properties of the nanocomposites revealed the existence of a critical specific mixing mechanical energy. Below this critical value, an increase of mechanical energy refines the structure, improving some end-use properties of the nanocomposite. Above this value, a high mixing energy supply is necessary in order to significantly modify the structure. They also highlighted that the clay fraction threshold, which is commonly attributed to the formation of a three-dimensional percolated network, decreases with increasing specific mixing energy, less significantly when this energy is superior to its critical value.

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