Bismuth nitrate complexes

Bi2S3, Bi2Se3. Bismuth nitrate complexed with triethanolamine or EDTA and thioacetamide, with the addition of hydrazine hydrate, have been... 

We could not find any study of Bi(III) ions in aqueous solutions except that Wang et al. [132] obtained nanorods of bismuth sulphide by sonicating an aqueous solution of bismuth nitrate and sodium thiosulphate in the presence of complexing agents such as ethylenediamine tetraacetic acid, triethanolamine and sodium tarta-rate. Similar results were found when thioacetamide was used in place of sodium thiosulphate as a source of sulfur. However, the results improved with higher yield... 

Crown ether complexes of bismuth nitrate were prepared by reacting Bi(N03)3 5H20 in 3 1 MeCN MeOH with a stoichiometric amount of the crown ether (101). Bi(N03)3(12-croum-4) has bismuth in a 10-coordinate Cs 4A,6B-expanded dodecahedral geometry 31, in which all four ether oxygen atoms are bound to the bismuth center... 

Thiolation is restricted by more effective nitrogen donors or steric limitations. The bis(aminothiolate) complexes are obtained from bismuth nitrate or chloride and the hydrogen chloride adduct of the thiol and essentially independent of stoichiometry. The nitrogen-bismuth interactions in these complexes [e.g., Bi(SCH2CH2NH2)2(N03)(H20) 54,... 

Bismuth-metal complexes, characteristics, 2, 34 Bismuth(III) nitrate, in Michael additions, 9, 442 Bismuth nucleophiles, in conjugate additions, 10, 395... 

In very acidic solutions, bismuth(III) exists in the form of the nonaaquo ion [Bi(H20)9] +, which is similar to the aquo complexes of the lanthanide ions, but partial hydrolysis of bismuth(III) salts leads to the formation of bismuth oxo clusters. The core structure of these complexes is often based upon a Bie octahedral core with oxide, hydroxide, or alkoxide functions bridging the edges and/or faces of the octahedron. The [Bi6(OH)i2] + ion (11) has been studied spectroscopically. In oxo clusters, the octahedron is face-bridged by eight oxo or alkoxide functions (12). Such core structures have been found in the hydrolysis of bismuth nitrate or perchlorate. ... 

A potentiometric method using a bismuth amalgam electrode has been used to determine formation constants of mixed chloride-nitrate complexes of Bi at 298 K. Complex composition was determined by the Sillen method, and the stability constants of BiCl (N03)m " compounds are given at zero ionic strength. ... 

A more complex but sensitive IC method was developed by Antony et al. based upon separation using a Dionex AS4A-SC column and postcolumn derivitization of phosphate using a solution containing 0.5% w/v ammonium molybdate and 0.5% w/v bismuth nitrate, in 1.75 M H2SO4 and 0.75% ascorbic acid. The resultant reduced ion association complex absorbed strongly at 700 nm and a detection limit for phosphate (P) of an impressive 0.8 /rg/1. The above chemistry has also been exploited in a recent publication by Haberer and Brandes " who carried out precolumn derivitization of phosphate within freshwater and saltwater samples and then solvent extracted the resultant molybdenum blue complex prior to separation and detection (at 700 nm) using reversed-phase HPLC. 

H8 - H. M. Hersheiison, M. E. Smith and D. N. Hume, "A Polaro-graphlc, Potentiometrlc and Spectrophotometrlc Study of Lead Nitrate Complexes", J, Am. Chem. Soc. 75, 507 (1953)-H9 - K. L. Hall, "Counting Efficiency of Bismuth-205 and the Branching Ratio of Polonlum-205", UCRL-1460 (August 29,... 

Tl -bismolyl derivative [Mn(CO)jL] (81) (L=2,5-Me2C4H2Bi). Two papers describe the formation of triiron complexes [ Fe(CO)4 3(p -BiR)] in which bismuth is tetrahedral, addition of acetic acid to which affords rectangular complexes [Fc(CO)4(p-BiR)]2 . Another publication details the preparation of a whole range of complexes in which a bismuth nitrate unit is linked to two metal centres , while thermolysis of NaBi03 and [Mo(CO)J in methanol for a day, followed by addition of Et4NBr yields the unusual cluster [Mo3(CO)9(p -Bi) p -(OMej)Mo(CX))3 ][NEt4]2, which contains a naked bismuth atom (82) . ... 

The solution should be free from the following, which either interfere or lead to an unsatisfactory deposit silver, mercury, bismuth, selenium, tellurium, arsenic, antimony, tin, molybdenum, gold and the platinum metals, thiocyanate, chloride, oxidising agents such as oxides of nitrogen, or excessive amounts of iron(III), nitrate or nitric acid. Chloride ion is avoided because Cu( I) is stabilised as a chloro-complex and remains in solution to be re-oxidised at the anode unless hydrazinium chloride is added as depolariser. 

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