title: CO2 template synthesis of metal formates with a ReO3 net.
abstract: The serendipitous discovery of CO2 as a template in the fabrication of ferric formate (1) has led to the preparation of serial metal(III) formates [MIII(HCOO)3.3/4CO2.1/4H2O.1/4HCOOH ]infinity (M = Fe(1), Al (2), Ga (3), and In(4)). The X-ray single-crystal determinations showed that the metals have octahedral geometries and are linked by HCOO- in the anti-anti style into a 3D ReO3 net, where CO2 molecules exist in cages of mmm symmetry and are hydrogen bonded to the formic CH groups. An X-ray powder diffraction (XRD) study revealed that 2 is identical to the documented [Al(HCOO)3.xH2O]. Further synthetic experiments and 13C NMR spectroscopy eventually confirmed that 2 should be formulated as [Al(HCOO)3.3/4CO2.1/4H2O.1/4HCOOH ]infinity, which for decades had been mistakenly given as [AlIII(HCOO)3.xH2O].
authors.affiliation: Institute of Chemistry for Functionalized Materials, College of Chemistry and Engineering, Liaoning Normal University, Dalian 116029, China. yqtian@lnnu.edu.cn
authors.forename: Yun-Qi
authors.initials: YQ
authors.lastname: Tian
authors.forename: Yu-Ming
authors.initials: YM
authors.lastname: Zhao
authors.forename: Hai-Jun
authors.initials: HJ
authors.lastname: Xu
authors.forename: Cheng-Yu
authors.initials: CY
authors.lastname: Chi
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry*; D018360:Crystallography, X-Ray; D005561:Formates / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods / Q000592:standards; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D033362:Powder Diffraction; D012015:Reference Standards; D012211:Rhenium / Q000737:chemistry*; D012680:Sensitivity and Specificity
chemical_list: D005561:Formates; D009942:Organometallic Compounds; D002245:Carbon Dioxide; D012211:Rhenium