1982
DOI: 10.1021/ja00388a022
|View full text |Cite
|
Sign up to set email alerts
|

Trans-2,6-bis[(dimethylamino)methyl]phenyl-N,N',C complexes of palladium(II) and platinum(II). Crystal structure of [PtI[MeC6H3(CH2NMe2)2-o,o']]BF4: a cyclohexadienyl carbonium ion with a .sigma.-bonded metal substituent

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

10
141
0
2

Year Published

1998
1998
2008
2008

Publication Types

Select...
8

Relationship

6
2

Authors

Journals

citations
Cited by 180 publications
(153 citation statements)
references
References 5 publications
10
141
0
2
Order By: Relevance
“…The reactions do not require excess transmetalating reagent and can be carried out in an exact 1:1 molar ratio. 8 have been synthesized via organolithium or Grignard reagents. However in a number of cases, alternative methods such as the use of other organometallic reagents or oxidative addition of C-X bonds (which requires the preparation of the corresponding aryl halides) to zerovalent metals are required in order to avoid reduction to metallic Ni or Pd or to prevent the formation of mixtures.…”
Section: Resultsmentioning
confidence: 99%
“…The reactions do not require excess transmetalating reagent and can be carried out in an exact 1:1 molar ratio. 8 have been synthesized via organolithium or Grignard reagents. However in a number of cases, alternative methods such as the use of other organometallic reagents or oxidative addition of C-X bonds (which requires the preparation of the corresponding aryl halides) to zerovalent metals are required in order to avoid reduction to metallic Ni or Pd or to prevent the formation of mixtures.…”
Section: Resultsmentioning
confidence: 99%
“…In general, a two-step metallation-trans metallation synthesis procedure can be used in the preparation of transition metal pincer complexes [9,10]. Lithiation of C 6 H 4 (CH 2 NMe 2 ) 2 -1,3 with n BuLi or t BuLi gives the corresponding metallated aryl Li(C 6 H 3 (CH 2 -NMe 2 ) 2 -2,6) which further reacts with [PtCl 2 (SEt 2 ) 2 ] to produce the respective transition metal complex [10].…”
Section: Synthesis and Spectroscopymentioning
confidence: 99%
“…Lithiation of C 6 H 4 (CH 2 NMe 2 ) 2 -1,3 with n BuLi or t BuLi gives the corresponding metallated aryl Li(C 6 H 3 (CH 2 -NMe 2 ) 2 -2,6) which further reacts with [PtCl 2 (SEt 2 ) 2 ] to produce the respective transition metal complex [10]. However, this procedure is not applicable for the synthesis of nitrile-functionalized NCN-pincer complexes since by the reaction of 2a with t BuLi the t Bu anion undergoes nucleophilic attack at the nitrile carbon atom [11].…”
Section: Synthesis and Spectroscopymentioning
confidence: 99%
“…These complexes were prepared from [MCl(NCN)] (M ) Pt (13), Pd (14), respectively) via halide abstraction with silver nitrate (Scheme 3), according to the procedure reported for the synthesis of [M(NCN)(OH 2 )](BF 4 ) (M ) Pt (11c), Pd (12c); Chart 2). 25 Figure 1. Displacement ellipsoid plot (50% probability level) of the molecular structure of 3a in the crystal, with the adopted labeling scheme.…”
Section: Synthesis and Characterization Of [M(ncn)(no 3 )] Complexesmentioning
confidence: 99%
“…10 The Pt-N(pyridyl) distances (2.141(6) Å for both Pt1-N22 and Pt3-N32) agree with those observed for trans-pyridyl-coordinated N∧C∧N ligands ([Pt(pip 2 NCN)(py)] + (2.138-2.159 Å) 21b,d The puckered five-membered chelate ring conformations, bond lengths, and bond angles of the Pt-NCN moieties fall in the range normally observed for square-planar platinum(II) complexes containing this type of ligand. 25,31 Although both complexes 3a and 16 have distorted squareplanar geometries with torsion angles between 29.8(4)°and 36.2(7)° (Figure 4) for the aryl rings around the platinum center, this should not hamper the possible formation of closed and flat molecular structures such as molecular squares. These complexes have proven to be very flexible in solution because twisting of the arene rings with respect to each other was even observed at low temperatures (vide infra).…”
Section: Synthesis and Characterization Of [M(ncn)(no 3 )] Complexesmentioning
confidence: 99%