ANILIDES TO CLEAN INDUSTRIAL WASTE WATERS Tsagana Sumyanova, - PowerPoint PPT Presentation

STUDY OF PROSPECTIVE COMPLEXES OF F-ELEMENTS WITH ANILIDES TO CLEAN INDUSTRIAL WASTE WATERS Tsagana Sumyanova, Natalya Borisova, Alexey Ivanov Radiochemistry Division, Chemistry Department, M.V. Lomonosov Moscow State University

The use of f-elements from wastes separated during the purification of industrial waste water 3rd Student Workshop on Ecology and 13 July, 2017, Kaliningrad 2 Optics of Coastal Zones

A selective extraction 3rd Student Workshop on Ecology and 13 July, 2017, Kaliningrad 3 Optics of Coastal Zones

Prospective 2,2 ’ -bipyridyl- 6,6’ -dicarboxamides R = o,p- diMe ( 1 ) o,m- diMe ( 2 ); o,m,m- triMe ( 3 ); p- tret-Bu ( 4 ); o- F ( 5 ); m- F ( 6 ); p- F ( 7 ); o- Br ( 8 ); H ( 9 [1] ) [1] European Journal of Inorganic Chemistry, 2014, 2219 – 2229 3rd Student Workshop on Ecology and 13 July, 2017, Kaliningrad 4 Optics of Coastal Zones

The absorption spectra of the o-fluoride anilide substituent and the complex with neodymium nitrate in dry acetonitrile 1.0 o-fluoride anilide the complex with Nd 3+ 0.8 0.6 A 0.4 0.2 0.0 260 280 300 320 340 360 wavelength  nm 3rd Student Workshop on Ecology and 13 July, 2017, Kaliningrad 5 Optics of Coastal Zones

Job’s plot for o-fluoride anilide with ion Tb 3+ (in solution) 1.0   mM nL M L m n 0.8 C n   L X   C C n m L M 0.6    A A A A  L   C 0.4     L A f      C C L M 0.2 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 c L /(c L +c M ) 3rd Student Workshop on Ecology and 13 July, 2017, Kaliningrad 6 Optics of Coastal Zones

The structure of the ligand complex of unsubstituted anilide with gadolinium according to X-ray diffraction analysis (in solid state) 3rd Student Workshop on Ecology and 13 July, 2017, Kaliningrad 7 Optics of Coastal Zones

The dependence of the molar absorption coefficient on titre volume of metal for the o- fluoride anilide with Nd 3+ system   ( A C )   L L 1            C V     титр          M 3 3 ( ) C LM LM    ML L L    V  20000  15000 10000 5000 0 0.0 0.2 0.4 0.6 0.8 titre volume, ml 3rd Student Workshop on Ecology and 13 July, 2017, Kaliningrad 8 Optics of Coastal Zones

The lanthanide ion dependence of the stability constants values for anilides 1-9 7.0 6.8 6.6 6.4 o,p-diMe 6.2 o,m-diMe o,m,m-tri-Me 6.0 lg   p-tret-Bu 5.8 p-F o-F 5.6 m-F 5.4 o-Br 1 H 5.2 5.0 4.8 La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu ions f-elements 3rd Student Workshop on Ecology and 13 July, 2017, Kaliningrad 9 Optics of Coastal Zones

The lg β 1 complexes of investigated anilides with lanthanide ions fall into 5,5-6,2 region 7.0 6.8 6.6 6.4 o,p-diMe 6.2 o,m-diMe o,m,m-tri-Me 6.0 lg   p-tret-Bu p-F 5.8 o-F 5.6 m-F o-Br 5.4 1 H 5.2 5.0 4.8 La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu ions f-elements 3rd Student Workshop on Ecology and 13 July, 2017, Kaliningrad 10 Optics of Coastal Zones

The fluorine in the o-position of the anilide stabilizes the complex due to conjugation of halogen long pairs with the phenyl ring 7.0 6.8 6.6 6.4 o,p-diMe 6.2 o,m-diMe o,m,m-tri-Me 6.0 lg   p-tret-Bu p-F 5.8 o-F 5.6 m-F o-Br 5.4 1 H 5.2 5.0 4.8 La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu ions f-elements 3rd Student Workshop on Ecology and 13 July, 2017, Kaliningrad 11 Optics of Coastal Zones

The long-chain substituent (t-Butyl) decrease the stability of the complexes irrespectively the position of the alkyl-group 7.0 N N N N O O 6.8 6.6 6.4 o,p-diMe 6.2 o,m-diMe o,m,m-tri-Me 6.0 lg   p-tret-Bu p-F 5.8 o-F 5.6 m-F o-Br 5.4 1 H 5.2 5.0 4.8 La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu ions f-elements 3rd Student Workshop on Ecology and 13 July, 2017, Kaliningrad 12 Optics of Coastal Zones

The o-fluorine-phenyl-amide could be serving as the most suitable candidate to clean industrial waste waters 3rd Student Workshop on Ecology and 13 July, 2017, Kaliningrad 13 Optics of Coastal Zones

Acknowledgements Dr. N. Borisova, Radiochemistry Division, Faculty of Chemistry, Lomonosov Moscow State University Dr. A. Ivanov, Radiochemistry Division, Faculty of Chemistry, Lomonosov Moscow State University We thank the RNF grant №16 -13-10451 for financial support 3rd Student Workshop on Ecology and 13 July, 2017, Kaliningrad 14 Optics of Coastal Zones

And to the Thank you for your attention! Organizing Committee 13 July, 2017, Kaliningrad 15