20523-65-3

Upstream product

• 102349-56-4 MoI₂(CO)3(MeCN)2 
• 22031-12-5 [2-((diphenylphospino)methyl)-2-methyl-1,3-propanediyl]bis[diphenylphosphine] 

Downstream Products

• 357399-87-2 WCl₂(CO)(C₂H₅C₂C₂H₅)2MoI₂(CO)3(CH₃C(CH₂P(C₆H₅)2)3) 
• 500911-29-5 [Fe(CO)2(η5-C5H5)(MoI2(CO)3(CH3C(CH2P(C6H5)2)3-P,P'))]I 
• 500911-31-9 [Fe(CO)2(η5-C5H4CH3)(MoI2(CO)3(CH3C(CH2P(C6H5)2)3-P,P'))]I 

Relevant academic research and scientific papers

Tripodal triphos MeC(CH2PPh2)3 complexes of molybdenum(II) and tungsten(II). Reactions of [MI2(CO) 3{MeC(CH2PPH2)3-P,P′}] (M = Mo or W) with molybdenum(II) and tungsten(II) complexes

Equimolar quantities of [MI2(CO)3 (NCMe)2] (M = Mo or W) and tripodal triphos {MeC(CH2PPh2)3} react in CH2Cl2 at room temperature for 5 min to give [MI2(CO)3{MeC(CH2 PPh2)3-P,P'}] (1 and 2) which contain one uncomplexed phosphorus donor atom capable of further coordination. Complexes 1 and 2 react in refluxing CHCl3 for 15 h (M = Mo) or 72 h (M = W) to give the complexes [MI2(CO)2 {MeC(CH2PPh2)3-P,P',P″}] (3 and 4). The complexes [MI2(CO)3(NCMe)2] (M = Mo or W) react with two equivalents of 1 (LMo) and 2 (LW) to yield the trimetallic complexes [MI2(CO)3(LMo or LW) 2] (5-8). A series of mixed-ligand seven-coordinate bimetallic complexes of the type [MI2(CO)3L(LMo or LW)] {M = Mo or W; L = PPh3, AsPh3, SbPh3; for M = W, P(OR)3 (R = Me, Et, Ph)} (9-17) have been prepared by reaction of [MI2(CO)3 (NCMe)2] with one equivalent of L to give [MI2 (CO)3(NCMe)L], followed by an in situ reaction with L Mo or LW. Similarly, reactions of [MI2 (CO)3{Ph2P(CH2)nPPh 2}] {n = 1 or 2} (prepared in situ) with equimolar amounts of LMo or LW affords the cationic complexes, [MI(CO)3)(LMo or LW) {Ph2 P(CH2)nPPh2}]I (18-21). Reaction of equimolar quantities of [MI2(CO)(NCMe)(η2-EtC 2Et)2] and LMo (for M = Mo) or LW (for M = W) affords the acetonitrile displaced products, [MI2(CO)(LMo or LW)(η2 -EtC2Et)2] (22) and (23). Treatment of [MI2(CO)(NCMe)(η2-EtC2Et) 2] with two equivalents of LMo (for M = Mo) or LW (for M = W) gives the mono(3-hexyne) trimetallic complexes [MI2(CO)(LMo or LW) 2(η2-EtC2Et)] (24) and (25). All the new complexes described in this paper have been characterised by elemental analysis, IR, 1H- and 31P-NMR spectroscopy.

Synthesis and reactions of the dichloro bis(3-hexyne) complex [WCl2(CO)(NCMe)(η2-EtC2Et)2]

Reaction of [WCl2(CO)3(NCMe)2] (prepared in situ by reacting [WI2(CO)3(NCMe)2] with two equivalents of NaCl in acetone) with an excess of EtC2Et in CH2Cl2 g