X-ray structure and solution characterization of tetracarbonylmolybdenumbis(.mu.-diphenylphosphinoethanethiolato)nickel (Ni(.mu.-SCH2CH2PPh2)2Mo(CO)4)

P−H-Functionalized 2-(Phosphanyl)ethanethiols, Their Titanocene Derivatives [Cp2Ti(SCH2CH2PHR)2] (R = Ph, 2,4,6-Me3C6H2, 2,4,6-iPr3C6H2) and Reaction of [Cp2Ti(SCH2CH2PHPh)2] with [Cu(CH3CN)4]BF4

“…However, when [Ni(CH 3 CN) 4 ](BF 4 ) 2 was treated with [Cp 2 Ti(SCH 2 CH 2 CH 2 PPh 2 ) 2 ], the trinuclear Ni complex [Ni{(SCH 2 CH 2 PPh 2 ) 2 Ni} 2 ] 2+ was obtained in a 75% yield due to ligand exchange 39. Other heterodinuclear complexes with phosphanylalkanethiolato bridges are [Ni(μ‐SCH 2 CH 2 PPh 2 ) 2 Mo(CO) 4 ],47 accessible from [Ni( S , P ‐SCH 2 CH 2 PPh 2 ) 2 ] and [Mo(CO) 4 (NBD)], and [Pt{μ‐SCH 2 CH 2 PEt 2 ) 2 Ag}] ∞ (NO 3 ) ∞ ,46 which is obtained from [Pt( S , P ‐SCH 2 CH 2 PEt 2 ) 2 ] and AgNO 3 .…”

Nickel‐Molybdenum and Nickel‐Tungsten Dithiolates: Hybrid Models for Hydrogenases and Hydrodesulfurization

“…also form stable Ni II Mo 0 species such as tetracarbonyl 3. [6] The present study makes use of the modularity with which one can prepare [L 2 Ni(SR) 2 M(CO) 4 ] complexes. Employed here are [Ni(dppe)(pdt)] [7] and [Ni(dcpe)(pdt)] [8] building blocks, which, while similar to the Ni II fragment in 3, retain some conformational flexibility when ligated to another metal.…”

Synthesis of Ni(ii), Pd(ii) and Pt(ii) complexes containing chiral phosphino-thiol and -thioether ligands

“…For the nickel dimer the S-Ni-S angles are 80.06(4) and 79.61(4)Њ, respectively, and are at the lower end of the literature range of 80-86Њ. 12 For similar complexes the rather small S-Ni-S angles and syn orientation of the sulfur substituents have been attributed to the repulsive interaction between the lone pairs on the sulfur atom and metal d-electrons. 12 The Ni-S bond lengths trans to phosphorus are 2.2378(9) and 2.2303(7) Å, respectively, and compare well with other reported Ni-S distances for bridging thiolates.…”

“…12 For similar complexes the rather small S-Ni-S angles and syn orientation of the sulfur substituents have been attributed to the repulsive interaction between the lone pairs on the sulfur atom and metal d-electrons. 12 The Ni-S bond lengths trans to phosphorus are 2.2378(9) and 2.2303(7) Å, respectively, and compare well with other reported Ni-S distances for bridging thiolates. 13 However, the Ni-S distances trans to the chloride, 2.1583(9) and 2.1713(7) Å, are much shorter due to the lower trans influence of the chloride.…”