1963
DOI: 10.1007/bf00843949
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Biferrocenes and terferrocenes

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Cited by 6 publications
(8 citation statements)
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“…Subsequently, different radical reactions have been reported such as mixed Ullmann reactions of halo- and 1,1‘-dihaloferrocene with copper bronze, , coupling reactions of lithio- and 1,1‘-dilithioferrocene with cobalt chloride in the presence of organic halides, treatment of poly(mercuriferrocenylene) with metallic silver or in molten ferrocene, or glow discharge polymerization . All led to oligomers with molecular weights in the range M n = 1000−3500, with poorly defined structures, low conductivity (σ = 10 -7 to 10 -9 S cm -1 ), and paramagnetic behavior.…”
Section: Poly(metallocenes)mentioning
confidence: 99%
See 1 more Smart Citation
“…Subsequently, different radical reactions have been reported such as mixed Ullmann reactions of halo- and 1,1‘-dihaloferrocene with copper bronze, , coupling reactions of lithio- and 1,1‘-dilithioferrocene with cobalt chloride in the presence of organic halides, treatment of poly(mercuriferrocenylene) with metallic silver or in molten ferrocene, or glow discharge polymerization . All led to oligomers with molecular weights in the range M n = 1000−3500, with poorly defined structures, low conductivity (σ = 10 -7 to 10 -9 S cm -1 ), and paramagnetic behavior.…”
Section: Poly(metallocenes)mentioning
confidence: 99%
“…8 After a reinvestigation of the original work, it was found that the soluble polymer was composed of a mixture of short poly(ferrocenylene) segments, with a mixed substitution (represented by 3) on the ferrocene of homoannular (1,2-and 1,3-) and heteroannular (1,1′-) units, linked by methylene and oxygencontaining hydrocarbon units. 9,10 Subsequently, different radical reactions have been reported such as mixed Ullmann reactions of haloand 1,1′-dihaloferrocene with copper bronze, 11,12 coupling reactions of lithio-and 1,1′-dilithioferrocene with cobalt chloride in the presence of organic halides, [13][14][15] treatment of poly(mercuriferrocenylene) with metallic silver 16 or in molten ferrocene, 17 or glow discharge polymerization. 18 All led to oligomers with molecular weights in the range M n ) 1000-3500, with poorly defined structures, low conductivity (σ ) 10 -7 to 10 -9 S cm -1 ), and paramagnetic behavior.…”
Section: Ii11 Poly(metallocenylenes) and Poly(metallocenes) With Shor...mentioning
confidence: 99%
“…[ 3,4 ] However, the preparation of its polymeric form, i.e., heteroannular poly(1,1′‐ferrocenylene) 2, as a well‐defined, ultimately monodispersed material, still remains a challenging task to this day. The synthesis of such a main‐chain ferrocene‐containing polymer was pioneered [ 5–8 ] and reinvestigated [ 9 ] decades ago, and was followed by further attempts. [ 10 ] However, only short oligomers such as sexiferrocene (2, n = 6; unsubstituted [ 11–13 ] or alkylated) [ 14 ] and septiferrocene (2, n = 7; alkylated) [ 15 ] were characterized as uniform substances.…”
Section: Introductionmentioning
confidence: 99%
“…It is known that fulvenes are readily produced from ferrocene derivatives bearing the R-carbenium ion. [18][19][20] The formation of such in the case of 1 can be envisaged as shown in Scheme 2. Here, the enzymatic electron transfer affords an unstable R-carbenium ion 3, which transforms rapidly into intermediate fulvene 4.…”
Section: Resultsmentioning
confidence: 99%