26151-44-0Relevant articles and documents
Bismuth ladder polymers: Structural and thermal studies of [Bi(OCH2CH2)3N]n and [(BixTb1-x(O2C2H2) 3N·2H2O]n
Bachman, Robert E.,Whitmire, Kenton H.,Thurston, John H.,Gulea, Aurelian,Stavila, Olexa,Stavila, Vitalie
, p. 249 - 255 (2003)
[Bi(OCH2CH2)3N],(Bi(TEA)), may be prepared by reaction of in situ generated Bi(OH)3 with triethanolamine in refluxing methanol. The complex crystallizes from solution as a double ladder polymer via the formation of additional metal-oxygen dative bonds to yield hypercoordinate and hypervalent metal centers. The structure of Bi(TEA) is very similar to that of Bi(O2CCH3)3N. The heterobimetallic nitriloacetate complex containing Bi and Tb was prepared by reaction of (NH4)3[Bi(Nta)2] with terbium nitrate in aqueous solution. Heating samples of [Bi(OCH2CH2)3N]n to 1000°C results in the formation of Bi2O3. It was shown that thermolysis of the [(BixTb1-x(O2C2H2) 3N)·H2O]n occurs in two stages, viz. the deaquation and pyrolysis of the ligand.
Cost efficient synthesis of bismuth aminoalkoxides from bismuth oxide: Molecular structure of [Bi2(mdea)2(mdeaH)2](mdeaH2)2
Bris, Jérome Le,Hubert-Pfalzgraf, Liliane G.,Daniele, Stéphane,Vaissermann, Jacqueline
, p. 80 - 83 (2007)
Functional Bi alkoxides were prepared by reaction between the oxide and diols such as N-methyldiethanolamine (mdeaH2), diethanolamine (deaH2) and triethanolamine (teaH3) in refluxing toluene in high yields. Similar reactions with polyols without N-donor site lead to oxo species. The derivative obtained with N-methyldiethanolamine was characterised by X-ray diffraction as a dimer [Bi2(mdea)2(mdeaH)2] associated as chains through H-bonding with neutral diol molecules giving the title compound. Bismuth is pseudo 7-coordinate. Bi-O bond distances range from 2.150(5) to 3.093(5) ? with three short ones, whereas the transannular Bi-N bond distances are 2.737 ? av. Thermolysis and hydrolysis reactions are reported.
Low temperature and controlled synthesis of Bi2(S1-xSex)3 thin films using a simple chemical route: Effect of bath composition
Salunkhe, Manauti M.,Khot, Kishorkumar V.,Sahare, Sanjay H.,Bhosale, Popatrao N.,Bhave, Tejashree
, p. 57090 - 57100 (2015/07/20)
Nanostructured bismuth sulphoselenide (Bi2(S1-xSex)3) thin films have been synthesized using a simple, cost-effective chemical bath deposition (CBD) method at room temperature (300 K). Structural, compositional, morphological and optical characterization and photoelectrochemical performance testing of these Bi2(S1-xSex)3 thin films has been carried out. The X-ray diffraction (XRD) study demonstrates that these thin films are nanocrystalline in nature with pure orthorhombic crystal structures. X-ray photoelectron spectroscopy (XPS) and energy dispersive X-ray spectroscopy (EDS) show that the deposited thin films are nearly stoichiometric in nature. Field emission scanning electron microscopy (FESEM) reveals different morphologies for the Bi2(S1-xSex)3 thin films. The linear nature of the plots seen in the UV-Vis-NIR absorption study confirms the direct allowed type of transition. J-V measurements with a solar simulator were carried out for all samples and the highest photoconversion efficiency, 0.3845%, has been recorded for the Bi2Se3 thin film. The significant boost in photoelectrochemical (PEC) performance might be due to the larger surface area with lower dislocation density and microstrain with a lower level of grain boundary resistance of Bi2Se3 thin films.
