ISSN:
0044-2313
Keywords:
Cyclotriphosphanes
;
transition metal carbonyl complexes of Fe, Co, Ir, and Ni
;
phosphorus-bridged
;
synthesis
;
crystal structure
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Synthesis and Structure of the Phosphorus-bridged Transition Metal Complexes [Fe2(CO)6(PR)6] (R = tBu, iPr), [Fe2(CO)4(PiPr)6], [Fe2(CO)3Cl2(PtBu)5], [Co4(CO)10(PiPr)3], [Ni5(CO)10(PiPr)6], and [Ir4(C8H12)4Cl2(PPh)4](PtBu)3 and (PiPr)3 react with [Fe2(CO)9] to form the dinuclear complexes [Fe2(CO)6(PR)6] (R = tBu: 1; iPr: 2). 2 is also formed besides [Fe2(CO)4(PiPr)6] (3) in the reaction of [Fe(CO)5] with (PiPr)3. When PiPr(PtBu)2 and PiPrCl2 are allowed to react with [Fe2(CO)9] it is possible to isolate [Fe2(CO)3Cl2(PtBu)5] (4). The reactions of (PiPr)3 with [Co2(CO)8] and [Ni(CO)4] lead to the tetra- and pentanuclear clusters [Co4(CO)10(PiPr)3] (5), [Ni4(CO)10(PiPr)6] [2] and [Ni5(CO)10(PiPr)6] (6). Finally the reaction of [Ir(C8H12)Cl]2 with K2(PPh)4 leads to the complex [Ir4(C8H12)4Cl2(PPh)4] (7). The structures of 1-7 were obtained by X-ray single crystal structure analysis (1: space group P21/c (Nr. 14), Z = 8, a = 1 758.8(16) pm, b = 3 625.6(18) pm, c = 1 202.7(7) pm, β = 90.07(3)°; 2: space group P1 (Nr. 2), Z = 1, a = 880.0(2) pm, b = 932.3(3) pm, c = 1 073.7(2) pm, α = 79.07(2)°, β = 86.93(2)°, γ = 72.23(2)°; 3: space group Pbca (Nr. 61), Z = 8, a = 952.6(8) pm, b = 1 787.6(12) pm, c = 3 697.2(30) pm; 4: space group P21/n (Nr. 14), Z = 4, a = 968.0(4) pm, b = 3 362.5(15) pm, c = 1 051.6(3) pm, β = 109.71(2)°; 5: space group P21/n (Nr. 14), Z = 4, a = 1 040.7(5) pm, b = 1 686.0(5) pm, c = 1 567.7(9) pm, β = 93.88(4)°; 6: space group Pbca (Nr. 61), Z = 8, a = 1 904.1(8) pm, b = 1 959.9(8) pm, c = 2 309.7(9) pm. 7: space group P1 (Nr. 2), Z = 2, a = 1 374.4(7) pm, b = 1 476.0(8) pm, c = 1 653.2(9) pm, α = 83.87(4)°, β = 88.76(4)°, γ = 88.28(4)°).
Notes:
Die Cyclotriphosphane (PtBu)3 und (PiPr)3 reagieren mit [Fe2(CO)9] unter Bildung der Zweikernkomplexe [Fe2(CO)6(PR)6] (R = tBu: 1; iPr: 2). 2 entsteht auch bei der Reaktion von [Fe(CO)5] mit (PiPr)3 neben dem Komplex [Fe2(CO)4(PiPr)6] (3). Aus der Reaktion von PiPr(PtBu)2 und PiPrCl2 mit [Fe2(CO)9] kann weiterhin [Fe2(CO)3Cl2(PtBu)5] (4) isoliert werden. Die Umsetzungen von (PiPr)3 mit [Co2(CO)8] und [Ni(CO)4] führen zu den vier- und fünfkernigen Clustern [Co4(CO)10(PiPr)3] (5), [Ni4(CO)10(PiPr)6] [2] und [Ni5(CO)10(PiPr)6] (6). Weiterhin kann aus der Reaktion von [Ir(C8H12)Cl]2 mit K2(PPh)4 der Komplex [Ir4(C8H12)4Cl2(PPh)4] (7) erhalten werden. Die Strukturen von 1-7 konnten durch Einkristall-Röntgenstrukturanalyse aufgeklärt werden (1: Raumgruppe P21/c (Nr. 14), Z = 8, a = 1 758,8(16) pm, b = 3 625,6(18) pm, c = 1 202,7(7) pm, β = 90,07(3)°; 2: Raumgruppe P1 (Nr. 2), Z = 1, a = 880,0(2) pm, b = 932,3(3) pm, c = 1 073,7(2) pm, α = 79,07(2)°, β = 86,93(2)°, γ = 72,23(2)°; 3: Raumgruppe Pbca (Nr. 61), Z = 8, a = 952,6(8) pm, b = 1 787,6(12) pm, c = 3 697,2(30) pm; 4: Raumgruppe P21/n (Nr. 14), Z = 4, a = 968,0(4) pm, b = 3 362,5(15) pm, c = 1 051,6(3) pm, β = 109,71(2)°; 5: Raumgruppe P21/n (Nr. 14), Z = 4, a = 1 040,7(5) pm, b = 1 686,0(5) pm, c = 1 567,7(9) pm, β = 93,88(4)°; 6: Raumgruppe Pbca (Nr. 61), Z = 8, a = 1 904,1(8) pm, b = 1 959,9(8) pm, c = 2 309,7(9) pm. 7: Raumgruppe P1 (Nr. 2), Z = 2, a = 1 374,4(7) pm, b = 1 476,0(8) pm, c = 1 653,2(9) pm, α = 83,87(4)°, β = 88,76(4)°, γ = 88,28(4)°).
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19946201027
Permalink