Homoleptische Carbenkomplexe, V [1]. Chelatartige Percarbenkomplexe des Palladiums und Platins / Homoleptic Carbene Complexes, V [1]. Chelating Percarbene Complexes of Palladium and Platinum

1994 ◽  
Vol 49 (4) ◽  
pp. 494-500 ◽  
Author(s):  
Wolf Peter Fehlhammer
Keyword(s):  
Platinum Complexes ◽  
Bidentate Ligands ◽  
One Pot ◽  
Carbene Complexes ◽  
X Ray ◽  
Tenfold Excess ◽  
Palladium And Platinum Complexes ◽  
Coordination Plane

Ten palladium and platinum complexes each containing two chelating bis(diaminocarbene) ligands have been synthesized in a one pot-reaction from PdI2, PtI2 or K2PtCl4, a tenfold excess (forty equivalents) of isocyanide and 1,2- or 1,3-diamines. An X-ray investigation of (8) revealed a stereochemistry with the two spiro-linked seven-membered metallacycles strongly bending out of the PtC4 coordination plane in opposite directions. In addition, three palladium bis-chelates with mixed amine/carbene bidentate ligands were obtained from reactions of PdI2 with only four equivalents of isocyanide and the diamine.

Anagostic Interactions in Alkyl-Fluorenyl-Substituted N‐Heterocyclic Carbene Complexes of Palladium(II)

2020 ◽  
Vol 73 (6) ◽  
pp. 579
Author(s):  
Hamzé Almallah ◽  
Eric Brenner ◽  
Dominique Matt ◽  
Mohamad Jahjah ◽  
Akram Hijazi ◽  
...  
Keyword(s):  
Solid State ◽  
Dft Calculations ◽  
Single Crystal ◽  
Spectroscopic Methods ◽  
Palladium Atom ◽  
Ring Plane ◽  
Carbene Complexes ◽  
X Ray ◽  
Methylene Groups ◽  
Coordination Plane

Two imidazolylidene (Im) complexes of the general formula trans-[PdX2(Im)(pyridine)] (X=Cl (2), Br (3)), in which the N-heterocyclic carbene ligand has one of its nitrogen atoms substituted by a bulky 9-propyl-9-fluorenyl group (PrF), have been prepared and fully characterised by spectroscopic methods and single-crystal X-ray structure analyses. In the solid state, the Im ring plane and the coordination plane of each complex are nearly orthogonal, thereby minimising the steric interactions between the N-substituents and the halide atoms. In both structures two methylenic C–H bonds sit near the dz2 axis point to the palladium atom, resulting in CH⋯Pd separations of 2.58/2.95Å in 2 and 2.74/2.74Å in 3. NMR measurements and DFT calculations indicate that these methylene groups are involved in anagostic CH⋯M interactions but not in significant H⋯X bonding.

Facile One-Pot Synthesis and X-ray Characterization of N-(Thio)phosphoryl-2-oxo-1,2-azaphospholanes: First Example of Cyclic O,O- and O,S-Bidentate Ligands with the P-N-P Backbone

Synthesis ◽  
2009 ◽  
Vol 2010 (04) ◽  
pp. 613-618
Author(s):  
Irina Odinets ◽  
Inga Aladzheva ◽  
Olga Bykhovskaya ◽  
Yulya Nelyubina ◽  
Alexander Korlyukov ◽  
...  
Keyword(s):  
Bidentate Ligands ◽  
One Pot ◽  
X Ray ◽  
One Pot Synthesis

Five-co-ordinate methylmercury and trimethyltin palladium and platinum complexes. X-Ray crystal structure of [N(CH2CH2PPh2)3Pt(HgMe)]BPh4

1989 ◽  
pp. 1686 ◽  
Author(s):  
Carlo A. Ghilardi ◽  
Stefano Midollini ◽  
Simonetta Moneti ◽  
Annabella Orlandini ◽  
Giancarlo Scapacci ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Platinum Complexes ◽  
X Ray ◽  
Palladium And Platinum Complexes

1-Diisopropylaminophospholes: synthesis and X-ray characterisations of new palladium and platinum complexes

2002 ◽  
Vol 643-644 ◽  
pp. 19-26 ◽  
Author(s):  
Jérôme Hydrio ◽  
Maryse Gouygou ◽  
Frédéric Dallemer ◽  
Gilbert G.A Balavoine ◽  
Jean-Claude Daran
Keyword(s):  
Platinum Complexes ◽  
X Ray ◽  
Palladium And Platinum Complexes
Sign in / Sign up

Export Citation Format

Share Document