Исследования структуры сверхпроводников Y1-x Yb x Ni2 B2 C, ряда полидисперсных систем, полимеров и белков методами EXAFS-спектроскопии и малоуглового рассеяния
Диссертация
Особое развитие в последние десятилетия получила методика исследования тонкой структуры рентгеновских спектров поглощения, получившая английскую аббревиатуру EXAFS — (extended X-ray absorption fine structure) или EXAFSспектроскопия. Хотя само это явление и его основное объяснение в терминах квантомеханического интерференционного эффекта было известно еще с 1930х годов, оно не стало практическим… Читать ещё >
Список литературы
- C.Mazumdar, R. Nagarajan, C. Godart, L.C.Gupta, M. Latroche, S.K.Dhar, C. Levy-Clement, B.D.Padalia and R. Vijayaraghavan, Superconductivity in YNiB4 (Tc=12.3 K), Solid State Commun. 87, 413−415 (1993)
- T.Siegrist, H.W.Zandbergen, R.J.Cava, J.J.Krajewski, W.F.Peck, The crystal structure of superconducting LuNi2B2C Nature (London) 367, 254−256 (1994)
- H.C.Ku, C.C.Lai, Y.B.You, J.H.Shieh and W.Y.Guan, Superconductivity at 15 К in the metastable ScNi2B2C compound. Phys. Rev. В 50, 351−353 (1994)
- C.V.Tomy, G. Balakrishnan and D.M.Paul, Superconductivity and magnetism in RNi2B2C (R=Ho, Er, Tm, Dy), Physica С 248, 349−355, (1995)
- B.K.Cho, P.C.Canfield and D.C.Johnston, Breakdown of de Gennes scaling in (R,.xRx'Ni2B2C) compounds, Phys. Rev. В 52, 3844−3846 (1995)
- H.Eisaki, H. Takagi, R.J.Cava, B. Batlogg, J.J.krajewsky, W.F.Peck, Jr., K. Mizuhashi, J.O.Lee, and S. Uchida, Competition between magnetism and superconductivity in rare-earth nickel boride carbides, Phys.Rev.В 50, 647−650 (1994)
- E.Alleno, Z. Hossain, C. Godart, R. Nagarajan and L.C.Gupta, Intermediate valence of Ce in Y,.xCexNi2B2C (x=0, 0.05, 0.1, 0.25, 0.5, and 1), Phys. Rev. В 52, 74 287 433 (1995)
- A.Yatskar, N.K.Budraa, W.P.Beyermann, P.C.Canfield and S.L.Bud'ko. Heavy-electron behavior in single-crystal YbNi2B2C, Phys. Rev. В 54, R3772-R3775 (1996)
- J.I.Lee, T.S.Shao, I.G.Kim, B.I. Min, S.J. Youn, Electronic structure of Ni-based superconducting quaternary compounds: YNi2B2X (X=B, C, N, and O), Phys.Rev.B 50, 4030−4033 (1994)
- L.F.Mattheiss, Electronic properties of superconducting LuNi2B2C and related boride carbide phases, Phys.Rev.B 49,13 279−13 282 (1994)
- K.D.D. Rathnayaka, A.K.Bhatnagar, A. Parasiris, D.G. Naugle, P.C. Canfield, B.K. Cho, Transport and superconducting properties of RNi2B2C (R=Y, Lu) singe crystals, Phys. Rev. B, 55, 8506−8519 (1997)
- I.R. Fisher, J.R. Cooper, R.J. Cava, Normal-state transport and magnetic properties of RNi2B2C (R=Y, Ho, La), Phys. Rev. B, 52, 15 086−15 089 (1995)
- R. Cywinski, R.H. Heffner, and A. Schneck, Muon-spin study of YNi2B2C, Physica C, 223, 273−280 (1994)
- A.K. Bhatnagar, K.D.D. Rathnayaka, D.G. Naugle, P.C. Canfield, Electrical resistivity and thermopower of single-crystal RNi2B2C (R=Dy, Ho, Er, Tm) magnetic superconductors, Phys. Rev. B, 56, 437−445 (1997)
- H. Schmidt, H.F. Braun, Superconductivity, magnetism, and their coexitstence in R (NiKxCox)2B2C (R=Lu, Tm, Er, Ho, Dy), Phys. Rev. B, 55, 8497−8505 (1997)
- E. Pellegrin, C.T. Chen, R.J. Cava, J.J. Krajewski, W.F. Peck, Electronic structure of RNi2B2C (R=rare earth) from x-ray absorption spectroscopy, Phys. Rev. B, 51, 16 159−16 163 (1995)
- A. Kampf and J.R. Schieffer, Spin fluctuations in Y-Ni-B-C systems, Phys. Rev. B, 41,6339−6344(1990)
- H. von Lips, Z. Ни, C. Grazioli, S.-L. Drechsler, G. Behr, M. Knupfer, M.S. Golden, J. Fink, H. Rosner, G. Kaindl, Polarization dependent x-ray-absorption spectroscopy of single-crystal YNi^B^C superconductors, Phys. Rev. B, 60, Н444. Ц448 (1999)
- H. Michor, Т. Holubar, С. Dusek, G. Hilscher, Specific-heat analysis of rare-earth transition-metal borocarbides: an estimation of the electron-phonon coupling strength, Phys. Rev. B, 52, 16 165−16 175 (1995)
- H. Sakata, M. Oosawa, K. Matsuba, N. Nishida, H. Takeya, K. Hirata, Imaging of a vortex lattice transition in YNi2B2C by scanning tunneling spectroscopy, Phys. Rev. Lett., 84, 1583−1586 (2000)
- M.E. Hanson, F. Lefloch, W.H. Wong, W.G. Clark, M.D. Lan, C.C. Hoellwarth, P. Klavins, R.N. Shelton, NMR investigation of the quartenary-intermetallic-compound superconductor YNi2B2C, Phys. Rev. B, 51, 674−677 (1995)
- S. K. Sinha, J.W.Lynn, T.E.Grigereit, Z. Hossain, L.C.Gupta, R. Nagarajan, C. Godart, Neutron-diffraction study of antiferromagnetic order in the magnetic superconductor ErNi2B2C, Phys. Rev. B, 51, 681−684 (1995)
- V.G.Hadjiev, L.N.Bozukov and M.G.Baychev, Raman scattering from phonons in YNi2B2C, Phys.Rev.B, 50, 16 726−16 728 (1994)
- H.-J. Park, H.-S. Shin, H.-G. Lee, I.-S. Yang, W.C. Lee, B.K. Cho, P.C. Canfield, D.C. Johnston, Raman modes of RNi2B2C (R=Lu, Ho, Y) single crystals, Phys. Rev. B, 53, 2237−2240 (1996)
- W.E.Pickett and D.J.Singh, LuNi2B2C: A novel Ni-based strong-coupling superconductor, Phys. Rev. Lett., 72, 3702−3705 (1994)
- T.Hirata and H. Takeya, Temperature dependence of the Raman-active Big and A, g modes in YNi2B2C, Phys. Rev. B, 57, 2671−2674 (1998)
- Т. Ekino, H. Fujii, M. Kosugi, Y. Zenitani. J. Akimitsu, Scanning tunneling spectroscopy of superconducting YNi2B2C, Physica C, 235−240, 2529−2533 (1994)
- H. Kawano, H. Yoshizawa, H. Takeya, K. Kadowaki, Anomalous phonon scattering below Tc in YNi2nB2C, Phys. Rev. Lett., 77, 4628−4631 (1996)
- P.A. Lee, Р.Н. Citrin, P. Eisenberger, В. M. Crosier, The quantum mechanical approach for EXAFS-spectroscopy, Rev. Mod. Phys., 53, 769−781 (1981)
- T.M. Hayes, J.B. Boyce, Solid State Physics: Advances in Research and Application// Eds. H. Ehrenreich, F. Seits, D. Turnbul, N.Y.: Academic Press, 1982, V. 7, p. 173
- A.P. Menushenkov, S. Benazeth, J. Purans, A.Yu. Ignatov, K.V. Klementev, Local structure anomalies of the BaBi (Pb)03 system at low temperatures: an x-ray absorption study, Physica C, 277, 257−264 (1997)
- A.V. Tsvyashchenko, The high pressure methods for mixed systems, J.Less.Common.Met., 99, 1134−1138, (1984)
- L.G. Khvostantsev, L.F. Vereshehagin and A.P. Novikov, High pressure «toroid"-type camera, High Temp. High Press., 9, 637−643 (1977)
- P.D.Dernier, W. Weber and L.D.Longinotti, Abnormal behavior of Debye-Waller factors in Smo.7Yo.3S at low temperatures, Phys. Rev. B, 14, 3635−3641 (1976)
- А.П.Менушенков, К. В. Клементьев, П. В. Конарев и А. А. Мешков Ангармонизм и сверхпроводимость в Вао.бКо.4ВЮз, Письма в ЖЭТФ 1998, 67(12), 977−982 (1998)
- H.Maruyama, H. Kimura, A. Koizumu // in X-Ray Absorption Fine Structure (Ed.: S. Samar Hasnain, Daresbery Laboratory, Warrington, UK, 1991) P. 370- H. Yamaguchi, H. Oyanagi, H. Ihara et al // ibid, P.380
- F.Gompf, W. Reichardt, H. Schrober, B. Renker, M. Buchgeister, Lattice vibrations and electron-phonon coupling in superconducting quaternary borocarbides: an inelastic neutron-scattering investigation, Phys. Rev. B, 55, 9058−9066 (1997)
- P.Ravindran, B. Johansson and O. Eriksson, Electronic structure, chemical bonding, phase stability and ground-state properties of YNi2. x (Co/Cu)xB2C, Phys. Rev. B, 58, 3381−3393 (1998)
- E. Sevillano, H. Meuth, J.J. Rehr, Extended x-ray absorption fine structure. Debye-Waller factors. I. Monatomic crystals, Phys. Rev. B, 20, 4908−4911 (1979)
- E.A. Stern and S.M. Heald, in Handbook on Synchrotron Radiation, edited by E.E. Koch (North-Holland, New York, 1983) V. 1
- S.I. Zabinsky, J.J. Rehr, A. Ankudinov, R.C. Albers and M.J. Eller, Multiple scattering calculations of x-ray absorption spectra. Phys.Rev.B, 52, 2995−3002 (1995)
- S. Meenakshi, V. Vijayakumar, R.S. Rao, B.K. Godwal, S.K. Sikka, P. Ravindran, Z. Hossain, R. Nagarajan, L.C. Gupta, and R. Vijayaraghavan, High-pressure studies on YNi2B2C at room temperature, Phys. Rev. B, 58, 3377−3380 (1998)
- A.V. Tsvyashchenko, Valence of Yb inYi-xYbx, J.Less.Common.Met, 32, 341 345 (1987)
- D. F. Evans and H. Wennerstrom The Colloidal Domain: Where Physics, Chemistry, Biology and Technology Meet, 2nd edition (Wiley-CH, New York, 1999)
- H. T. Davis, J. F. Bodet, L. E. Scriven, and W. G. Miller (pp. 310−327) in Physics of Amphiphilic Layers, edited by J. Meunier, D. Langevin, and N. Boccara (Springer, Berlin, 1987)
- Micelles, Membranes, Microemulsions, and Monolayers, edited by W.M. Gelbart, A. Ben-Shaul, and D. Roux (Springer, New York, 1994)
- S. A. Safran, Statistical Thermodynamics of Surfaces, Interfaces, and Membranes (Adison-Wesley, Reading, 1994)
- G. J. M. Koper, W. F. C. Sager, J. Smeets, and D. Bedeaux, Aggeration in oil-continuous water/sodium bis (2-ethylhexyl)sulfoccinate/oil microemulsions, J. Phys. Chem. 99, 13 291−13 300 (1995)
- D. Chatenay, W. Urbach, A. M. Cazabat, and D. Langevin, Onset of droplet aggregation from self-diffusion measurements in microemulsions. Phys. Rev. Lett. 54, 2253−2256(1985)
- S. Bhattacharya, J. P. Stokes, M. W. Kim, and J. S. Huang, Percolation in an oil-continuous microemulsion. Phys. Rev. Lett. 55, 1884−1887 (1985)
- W. Sager, W. Sun, and H.-F. Eicke, Is the AOT / Water / Oil System Really Simple? Progr. Colloid Polym. Sci. 89, 284−287 (1992)
- S.-H. Chen, S.-L. Chang, and R. Strey, Structural evolution within the one-phase region of a three-component microemulsion system: water-n-decane-sodium-bis-ethylhexylsulfosuccinate (AOT), J. Chem. Phys. 93, 1907−1917 (1990)
- С. Robertus, J. G. H. Joosten, and Y. K. Levine, The effect of the composition of the oil phase on the microstructure and dielectric behavior of water-in-oil microemulsions, J. Chem. Phys. 93, 7293−7300 (1990)
- W. F. C. Sager and E. M. Blokhuis, Curvature Energy for Droplet Dimerisation and Aggregation in Microemulsions. Progr. Colloid Polym. Sci. 110, 258−2 621 998)
- E. M. Blokhuis and W. F. C. Sager, Helfrich Free Energy for Aggregation and Adhesion. J. Chem. Phys. 110, 3148−3152 (1999)
- E.M. Blokhuis and W. F. C. Sager, Vesicle Adhesion and Microemulsion Droplet Dimerization: Small Bending Rigidity Regime. J. Chem. Phys., Ill, 7062−70 741 999)
- L. J. Magid, R. Triolo, and J. S. Johnson Jr., Critical phenomena and aggregate structure in an oil-in-water microemulsion: A small-angle neutron scattering study. J. Chem. Phys. 81, 5161−5166 (1984)
- J. Brunner-Popela, R. Mittelbach, R. Strey, K.-V. Schubert, E. W. Kaler, and O. Glatter, Small-angle scattering of interacting particles. Ill D2O-C12E5 mixtures and microemulsions with n-octane. J. Chem. Phys. 110, 10 623−10 632 (1999)
- M. Teubner and R. Strey, Origin of the scattering peak in microemulsions. J.Chem.Phys. 87, 3195−3200 (1987)
- W. F. C. Sager, Systematic Study on the Influence of Impurities of the Phase Behaviour of Sodium Bis (2-ethylhexyl) Sulfosuccinate Microemulsions. Langmuir 14, 6385−6395 (1998)
- B. Farago (pp. 365−373) in Structure of Dynamics of Strongly Interacting Colloids and Supramolecular Aggregates in Solution, edited by S.-H. Chen, J. S. Huang, and P. Tartaglia (Kluwer, Dordrecht, 1992)
- H. Kellay, J. Meunier, and B. P. Binks, Saddle-splay modulus of the AOT monolayer in the AOT-brine-oil system, Phys. Rev. Lett. 70, 1485−1488 (1993)
- S. Koenig, D. I. Svergun, M. H. J. Koch, G. Huebner, and A. Schellenberger, Synchrotron radiation solution X-ray scattering study of the pH dependence of the quaternary structure of yeast pyruvate decarboxylase, Biochemistry 31, 8726−8731 (1992)
- G.V.Schulz, Distibution functions in physical processes, Z. Phys. Chem. 30, 379 385 (1935)
- D. I. Svergun, L. A. Feigin, Structure Analysis by Small-Angle X-ray and Neutron Scattering, edited by G.W. Taylor, (Sec. Ed. New York: Plenum Press 1989)
- J. K. Percus, and G. J. Yevick, Many-body correlation functions, Phys. Rev. 110,1.34 (1958)
- R. J. Baxter, Percus-Yevick equation for hard spheres with surface adhesion, J. Chem. Phys. 49, 2270−2275 (1968)
- Practical optimisation edited by P. E. Gill, W. Murray, and M. H. Wright, (Acad. Press, London 1981)
- M. H. J. Koch, and J. Bordas, X-ray diffraction and scattering on disorderedsystems using synchrotron radiation, Nucl. Instrum. Methods 208, 461−469 (1983)
- C. J. Boulin, R. Kempf, M. H. J. Koch, and S. M. McLaughlin, Data appraisal, evaluation and display for synchrotron radiation experiments: hardware and software, Nucl. Instrum. Methods A 249, 399−407 (1986)
- C. J. Boulin, R. Kempf, A. Gabriel, and M. H. J. Koch, Data acquisition systems for linear and area x-ray detectors using delay line readout, Nucl. Instrum. Methods A269, 312−320 (1988)
- A. Gabriel and F. Dauvergne, The localisation method used at EMBL, Nucl. Instrum. Methods 201, 223−224 (1982)
- D. I. Svergun, A. V. Semenyuk, and L. A. Feigin, Small-angle scattering data treatment by the regularization method, Acta Crystallogr. A44, 244−250 (1988)
- D. I. Svergun, Determination of the regularization parameter in indirecttransform methods using perceptual criteria, J. Appl. Crystallogr. 25, 495−503 (1992)
- R. Menes, S. A. Safran, and R. Strey, Reentrant phase separation in microemulsions, Phys. Rev. Lett. 74, 3399−3402 (1995)
- С. E. Shannon, W. Weaver, The mathematical theory of communication. University of Illinois Press, Urbana (1949)
- W. L. Griffith, R. Triolo, and A. L. Compere, Analytical scattering function of a polydisperse Percus-Yevick fluid with Schulz- (Г-) distributed diameters, Phys. Rev. A 35, 2200−2206 (1987)
- T. Shimada, M. Doi, and K. Okano, Concentration fluctuation of stiff polymers. I. Static structure factor, J. Chem. Phys. 88, 2815−2821 (1988)
- P. van der Schoot, Structure factor of a semidilute solution of polydisperse rodlike macromolecles, Macromolecules 25, 2923−2927, (1992)
- J.H. Fendler, Nanoparticles and nanostructured films, Ed. Wiley-VCH (New York Press 1998)
- A.N. Parikh, M.A. Schivley, E. Koo, K. Seshadri, D. Aurentz, K. Mueller, D.L. Allara, Metal Nanoparticles in Multilayered Poly (octadecylsiloxane), J. Am. Chem. Soc. 119, 3135−3142 (1997)
- B.K. Vainshtein, Diffraction of X-rays by Chain Molecules, (Elsevier Publishing Company, Amsterdam, 1966)
- H.-F.Nolting and C. Hermes, EXPROG: EMBL EXAFS data analysis and evaluation program package, HASYLAB Jahresbereicht, part II, 181−182 (1992)
- P.V.Konarev, J. Jaschke, W. Meyer-Klaucke, A new program for fluorescence EXAFS data reduction. HASYLAB Jahresbereicht, part II, 423−424 (1999)
- S.K. Burley, An overview of structural genomics. Nat Struct Biol, 7SuppI, 932 934 (2000)
- A.M. Edwards, C.H. Arrowsmith, D. Christendat, A. Dharamsi, J.D. Friesen, J.F. Greenblatt, and M. Vedadi, Protein production: feeding the crystallographers and NMR spectroscopists [In Process Citation], Nat Struct Biol, 7 Suppl, 970−972 (2000)
- L.A. Feigin and D.I. Svergun, Structure analysis by small-angle x-ray and neutron scattering. (New York: Plenum Press. 1987)
- D.I. Svergun, V.V. Volkov, M.B. Kozin, and H.B. Stuhrmann, New developments in direct shape determination from small-angle scattering 2. Uniqueness. Acta Crystallogr., A52, 419−426 (1996)
- D.I. Svergun, Restoring low resolution structure of biological macromolecules from solution scattering using simulated annealing. Biophys J, 76(6), 2879−2886 (1999)
- P. Chacon, F. Moran, J.F. Diaz, E. Pantos, and J.M. Andreu, Low-resolution structures of proteins in solution retrieved from X-ray scattering with a genetic algorithm. Biophys J, 74(6), 2760−2775 (1998)
- D. Walther, F.E. Cohen, and S. Doniach, Reconstruction of low-resolution three-dimensional density maps from one-dimensional small-angle X-ray solution scattering data for biomolecules. J. Appl. Crystallogr., 33, 350−363 (1999)
- A.W. Ashton, M.K. Boehm, J.R. Gallimore, M.B. Pepys, and S.J. Perkins, Pentameric and decameric structures in solution of serum amyloid P component by X-ray and neutron scattering and molecular modelling analyses. J Mol Biol, 272(3), 408−422 (1997)
- J.K. Krueger, G.A. Olah, S.E. Rokop, G. Zhi, J.T. Stull, and J. Trewhella, Structures of calmodulin and a functional myosin light chain kinase in the activated complex: a neutron scattering study. Biochemistry, 36(20), 6017−6023 (1997)
- D.I. Svergun, Mathematical methods in small-angle scattering data analysis. J. Appl. Crystallogr., 24, 485−492 (1991)
- D.I. Svergun, C. Barberato, and M.H.J. Koch, CRYSOL a program to evaluate X-ray solution scattering of biological macromolecules from atomic coordinates. J. Appl. Crystallogr., 28, 768−773 (1995)
- D.I. Svergun, J.S. Pedersen, I.N. Serdyuk, and M.H. Koch, Solution scattering from 50S ribosomal subunit resolves inconsistency between electron microscopic models. ProcNatl Acad Sci U S A. 91(25), 11 826−11 830 (1994)
- D.I. Svergun, S. Richard, M.H. Koch, Z. Sayers, S. Kuprin, and G. Zaccai, Protein hydration in solution: experimental observation by x-ray and neutron scattering. Proc Natl Acad Sci USA, 95(5), 2267−2272 (1998)
- M.B. Kozin, V.V. Volkov, and D.I. Svergun, ASSA a program for three-dimensional rendering in solution scattering from biopolymers. J. Appl. Crystallogr., 30, 811−815 (1997)
- M.B. Kozin and D.I. Svergun, A software system for automated and interactive rigid body modeling of solution scattering data. J. Appl. Crystallogr., 33, 775−777 (2000)
- A.R. Edmonds, Angular momentum in quantum mechanics. Investigations in physics (Princeton University Press. 1957)
- D.I. Svergun, Solution scattering from biopolymers: advanced contrast variation data analysis. Acta Crystallogr., A50, 391−402 (1994)
- D.I. Svergun, V.V. Volkov, M.B. Kozin, H.B. Stuhrmann, C. Barberato, and M.H.J. Koch, Shape determination from solution scattering of biopolymers. J. Appl. Crystallogr., 30, 798−802 (1997)
- H.B. Stuhrmann, Interpretation of small-angle scattering of dilute solutions and gases. A representation of the structures related to a one-particle scattering functions. Acta Cryst., A26, 297−306 (1970)
- J.D. Foley, A. van Dam, S.K. Feiner, and J.F. Hughes, Computer Graphics. Principles and practice. (Second edition ed. New York: Addison-Wesley Publishing Company. 1990)
- J. Frank, M. Radermacher, P. Penczek, J. Zhu, Y. Li, M. Ladjadj, and A. Leith, SPIDER and WEB: processing and visualization of images in 3D electron microscopy and related fields. J Struct Biol, 116(1), 190−199 (1996)
- R. Diamond, Real-space refinement of the structure of hen egg-white lysozyme. J Mol Biol, 82(3), 371−391 (1974)
- M.B. Kozin and D.I. Svergun, Automated matching of high- and low-resolution structural models. J. Appl. Crystallogr., in press (2001)
- T.A. Jones, J.-Y. Zou, and S.W. Cowan, Improved methods for building protein models in electron density maps and the location of errors in these models. Acta Cryst., A47, 110−119 (1991)
- R.A. Sayle and E.J. Milner-White, RASMOL: biomolecular graphics for all. Trends Biochem Sci., 20(9), 374−376 (1995)
- R.M. Horton, Scripting Wizards for Chime and RasMol. Biotechniques, 26(5), 874−876(1999)
- D.I. Svergun, M.V. Petoukhov, M.H. Koch, and S. Konig, Crystal versus solution structures of thiamine diphosphate-dependent enzymes. J Biol Chem, 275(1), 297−302 (2000)
- W. Wriggers, R.A. Milligan, and J.A. McCammon, Situs: A package for docking crystal structures into low-resolution maps from electron microscopy. J Struct Biol, 125(2−3), 185−195 (1999)
- G.J. Kleywegt and T.A. Jones, Software for handling macromolecular envelopes. Acta Cryst., D55, 941−944 (1999)
- O. Meyer, L. Gremer, R. Ferner, M. Ferner, H. Dobbek, M. Gnida, W. Meyer-Klaucke, R. Huber, The role of Se, Mo and Fe in the structure and function of carbon monoxide dehydrogenase, Biol. Chem., 381, 865−876, (2000)
- L.Gremer, S. Kellner, H. Dobbek, R. Huber, O. Meyer, Binding of flavin adenine dinucleotide to molebdenum-containing carbon monoxide dehydrogenase from Oligotropha carboxidovorans, J. Biol. Chem. 275, 1864−1872, (2000)
- D.J. Payne, Metallo-beta-lactamases-a new therapeutic challenge, J Med Microbiol, 39(2), 93−99 (1993)
- A. Carfi, E. Duee, M. Galleni, J.M. Frere, O. Dideberg, 1.85 A resolution structure of zinc (II) beta-lactamase from Bacillius Cereus, Acta Cryst., 54, 313 318 (1998)
- N.Binsted, R.W.Strange and S.S.Hasnain, EXCURVE program for EXAFS data analysis Biochemistry 31, 12117(1992)
- ГО С f Ц л р' •"'< 1 ' -«SrVUi'-^r «i*