1293-87-4 Usage
Chemical Properties
dark brown powder
Uses
Reactant for preparation of:Planar chiral ferrocene-based amido-phosphine ligands as catalysts for asymmetric allylic alkylation reactionsPotential antitumor agentsIsostructural ferrocenyl coordination polymer hollow microspheres with H2 storage propertiesPrganometallic aromatic polyestersManganese-lanthanide-ferrocene clusters
Purification Methods
It crystallises in orange-yellow crystals from AcOH and sublimes above 230o. The monomethyl ester has m 147-149o [Nesmeyanov & Reutov Dokl Acad Nauk USSS 115 518 1957]. The dimethyl ester has m 114-115o [Woodward et al. J Am Chem Soc 74, 3458 1953]. The diacid chloride has m 92-93o when recrystallised from pet ether. [Nesmeyanov & Reutov Dokl Acad Nauk SSSR 120 1267 1958, Kazitsyna et al. Dokl Acad Nauk SSSR 127 333 1959, Beilstein 16 IV 1811.]
Check Digit Verification of cas no
The CAS Registry Mumber 1293-87-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,9 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1293-87:
(6*1)+(5*2)+(4*9)+(3*3)+(2*8)+(1*7)=84
84 % 10 = 4
So 1293-87-4 is a valid CAS Registry Number.
1293-87-4Relevant articles and documents
A solid-gas route to polymorph conversion in crystalline [Fe II(η5-C5H4COOH)2]. A diffraction and solid-state NMR study
Braga, Dario,Grepioni, Fabrizia,Polito, Marco,Chierotti, Michele R.,Ellena, Silvano,Gobetto, Roberto
, p. 4627 - 4633 (2008/10/09)
Crystalline form I (monoclinic) and form II (triclinic) of ferrocene dicarboxylic acid [Fe(η5-C5H4-COOH) 2] have been employed in solid-gas reactions at room temperature with the gaseous bases NH3, NH2(CH3), and NH(CH3)2. The two crystal forms behave in exactly the same way in the solid-gas reaction, generating the same products, identified as the anhydrous crystalline salts [NH4]2-[Fe(η5- C5H4-COO)2] (1), [NH3CH 3]2[Fe(η5-C5H 4COO)2] (2), and [NH2(CH3) 2]2[Fe(η5-C5H 4COO)2] (3). Interestingly though, all these crystals revert via vapor release exclusively to the metastable crystalline form I. Starting materials and products have been investigated by single-crystal and powder diffraction and by 13C, 15N CPMAS and 1H MAS methods.
