Items where Author is "Sigel, Helmut"

2019

Sigel, Helmut and Sigel, Astrid. (2019) Bioinorganic Chemistry - A Topic for Life - From the Past to the Future. In: Abstracts of the 19th International Conference on Biological Inorganic Chemistry. Interlaken, p. 72.

Blindauer, Claudia A. and Holy, Antonin and Operschall, Bert P. and Sigel, Astrid and Song, Bin and Sigel, Helmut. (2019) Metal Ion-Coordinating Properties in Aqueous Solution of the Antivirally Active Nucleotide Analogue (S)-9-[3-Hydroxy-2-(phosphonomethoxy)propyl]adenine (HPMPA). Quantification of Complex Isomeric Equilibria. European Journal of Inorganic Chemistry, 35. pp. 3892-3903.

Sigel, Helmut and Sigel, Astrid. (2019) The bio-relevant metals of the periodic table of the elements. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, 74 (6). pp. 461-471.

Griesser, Rolf and Sigel, Astrid and Sigel, Helmut. (2019) Xanthosinate 5'-Monophosphate (XMP - H)3-: Its Intriguing Acid-Base and Metal Ion-Binding Properties. In: Abstracts of the 19th International Conference on Biological Inorganic Chemistry. Interlaken, p. 588.

2018

Blindauer, Claudia A. and Griesser, Rolf and Holy, Antonin and Operschall, Bert P. and Sigel, Astrid and Song, Bin and Sigel, Helmut. (2018) Intramolecular pi-stacks in mixed-ligand copper(II) complexes formed by heteroaromatic amines and antivirally active acyclic nucleotide analogs carrying a hydroxy-2-(phosphonomethoxy)propyl residue. Journal of coordination chemistry, 71 (11-13). pp. 1910-1934.

Sigel, Astrid and Sigel, Helmut. (2018) Lead (II). A Mimic of Copper (II) and vice versa? Acta of the International Symposia on Metal Complexes, 8. pp. 100-101.

Sigel, Astrid and Operschall, Bert P. and Sigel, Roland K. O. and Sigel, Helmut. (2018) Metal Ion Complexes of Nuceloside Phosphorothioates Reflecting the Ambivalent Properties of Lead (II). New Journal of Chemistry, 42 (10). pp. 7551-7559.

Blindauer, Claudia A. and Sigel, Astrid and Operschall, Bert P. and Holy, Antonin and Sigel, Helmut. (2018) Metal Ion-Binding Properties of (S)-1-[3-Hydroxy-2-(phosphonomethoxy)propyl]cytosine (HPMPC, Cidofovir). A Nucleotide Analogue with Activity Against DNA Viruses. Inorganica Chimica Acta, 472 (Special Issue). pp. 283-294.

2017

Sigel, Astrid and Sigel, Helmut. (2017) Comparison of the Properties of Nucleotide-Metal Ion Complexes Including Those of the Toxic Lead(II). Journal of Biological Inorganic Chemistry, 22 (1 Supplement). p. 232.

Sigel, Astrid and Operschall, Bert P. and Sigel, Helmut. (2017) Complex Formation of Lead(II) with Nucleotides and Their Constituents. In: Lead: Its Effects on Environment and Health, 17. pp. 319-402.

Sigel, Astrid and Operschall, Bert P. and Sigel, Helmut. (2017) The ambivalent properties of lead(II) and related metal ions in complexes of nucleoside phosphorothioates. Acta of the International Symposia on Metal Complexes, 7 / 2017. pp. 137-138.

2016

Sigel, Astrid and Operschall, Bert P. and Griesser, Rolf and Song, Bin and Okruszek, Andrzej and Odani, Akira and Katsuta, Tsuguno and Lippert, Bernhard and Sigel, Helmut. (2016) (N7)-Platination and Its Effect on (N1) H-Acidification in Nucleoside Phosphate Derivates. Inorganica Chimica Acta, 452. pp. 137-151.

Sigel, Astrid and Operschall, Bert P. and Matera-Wikiewicz, Agnieszka and Swiatek-Kozlowska, Jolanta and Sigel, Helmut. (2016) Acid–base and metal ion-binding properties of thiopyrimidine derivatives. Coordination Chemistry Review, 327-328. pp. 200-220.

2015

Sigel, Helmut. (2015) Some Fragmentary Reflections about Professor Henryk Kozlowski and his Mentor Professor Boguslawa Jezowska-Trzebiatowska. Spotkajmy sie we Wroclawiu (Let's Meet in Wroclaw), 33. pp. 37-40.

2013

Sigel, Roland K. O. and Skilandat, Miriam and Sigel, Astrid and Operschall, Bert P. and Sigel, Helmut. (2013) Complex Formation of Cadmium with Sugar Residues, Nucleobases, Phosphates, Nucleotides, and Nucleic Acids. In: Cadmium: From Toxicity to Essentiality., 11. pp. 191-274.

2011

Corfù, Nicolas A. and Sigel, Astrid and Operschall, Bert P. and Sigel, Helmut. (2011) Probing the Stacking Properties of Nucleosides and Nucleotides with Heteroaromatic Amines and the Effect of Metal Ion-Bridging on the Stability of the Stacks. Implications for biological systems. Journal of the Indian Chemical Society, 88 (8). pp. 1093-1115.

2009

Operschall, Bert P. and Bianchi, Emanuela M. and Griesser, Rolf and Sigel, Helmut. (2009) Influence of decreasing solvent polarity (1,4-dioxane/water mixtures) on the stability and structure of complexes formed by copper(II), 2,2`-bipyridine or 1,10-phenanthroline and guanosine 5`-diphosphate : evaluation of isomeric equilibria. Journal of coordination chemistry, Vol. 62. pp. 23-39.

Fernandez-Botello, Alfonso and Holy, Antonin and Moreno, Virtudes and Operschall, Bert P. and Sigel, Helmut. (2009) Intramolecular pi-pi stacking interactions in aqueous solution in mixed-ligand copper(II) complexes formed by heteroaromatic amines and the nucleotide analogue 9-[2-(phosphonomethoxy)ethyl]-2-aminopurine (PME2AP), an isomer of the antivirally active 9-[2-( phosphonomethoxy)ethyl]adenine (PMEA). Inorganica chimica acta, Vol. 362, H. 3. pp. 799-810.

Sigel, Helmut and Operschall, Bert P. and Griesser, Rolf. (2009) Xanthosine 5′-monophosphate (XMP). Acid–base and metal ion-binding properties of a chameleon-like nucleotide. Chemical Society Reviews, 38 (8). pp. 2465-2494.

2008

Brasun, Justyna and Matera, Agnieszka and Sochacka, Elzbieta and Swiatek-Kozlowska, Jolanta and Kozlowski, Henryk and Operschall, Bert P. and Sigel, Helmut. (2008) Acid-base and metal ion binding properties of 2-thiocytidine in aqueous solution. Journal of Biological Inorganic Chemistry, 13 (5). pp. 663-674.

Freisinger, Eva and Griesser, Rolf and Lippert, Bernhard and Moreno-Luque, Cristobal F. and Niclos-Gutierrez, Juan and Ochocki, Justyn and Operschall, Bert P. and Sigel, Helmut. (2008) Comparison of the surprising metal-ion-binding properties of 5-and 6-Uracilmethylphosphonate (5Umpa(2-) and 6Umpa(2-)) in aqueous solution and crystal structures of the Dimethyl and Di(isopropyl) esters of H-2(6Umpa). Chemistry, a European journal, Vol. 14, H. 32. pp. 10036-10046.

Knobloch, Bernd and Okruszek, Andrzej and Sigel, Helmut. (2008) Inosylyl(3'-< 5')inosine (Ipl⁻): Acid-base and metal ion-binding properties of a dinucleoside monophosphate in aqueous solution. Inorganic chemistry, Vol. 47, H. 7. pp. 2641-2648.

2007

Odani, Akira and Kozlowski, Henryk and Swiatek-Kozlowska, Jolanta and Brasun, Justyna and Operschall, Bert P. and Sigel, Helmut. (2007) Extent of metal ion-sulfur binding in complexes of thiouracil nucleosides and nucleotides in aqueous solution. Journal of inorganic biochemistry, Vol. 101, H. 4. pp. 727-735.

Knobloch, Bernd and Sigel, Helmut and Okruszek, Andrzej and Sigel, Roland K. O.. (2007) Metal-ion-coordinating properties of the dinucleotide 2 `-deoxyguanylyl(5 `-< 3 `)-2 `-deoxy-5 `-guanylate (d(pGpG)(3-)) : isomeric equilibria including macrochelated complexes relevant for nucleic acids. Chemistry, a European journal, Vol. 13, H. 6. pp. 1804-1814.

Fernandez-Botello, Alfonso and Escuer, Albert and Solans, Xavier and Font-Bardia, Merce and Holy, Antonin and Sigel, Helmut and Moreno, Virtudes. (2007) New ternary complexes of copper(II) with 2,2 `-bipyridine (Bpy) and phosphocholine (PCh(-)) or the quaternary 1-(2-phosphonomethoxy)ethyl derivative of 2,4-diaminopyrimidine (PMEDAPy(-)). European journal of inorganic chemistry, 2007, H. 13. pp. 1867-1873.

2004

Gómez-Coca, R. B. and Kapinos, L. E. and Holý, A. and Vilaplana, Rosario A. and González-Vílchez, Francisco and Sigel, Helmut. (2004) Quantification of isomeric equilibria formed by metal ion complexes of 8-[2-(phosphonomethoxy)ethyl]-8-azaadenine (8,8aPMEA) and 9-[2-(phosphonomethoxy)ethyl]-8-azaadenine (9,8aPMEA) : derivatives of the antiviral nucleotide analogue 9-[2-(phosphonomethoxy)ethyl]adenine (PMEA). Journal of Biological Inorganic Chemistry, 9 (8). pp. 961-972.

2003

Griesser, Rolf and Kampf, Gunnar and Kapinos, Larisa E. and Komeda, Seiji and Lippert, Bernhard and Reedijk, Jan and Sigel, Helmut. (2003) Intrinsic acid-base properties of purine derivatives in aqueous solution and comparison of the acidifying effects of platinum(II) coordinated to N1 or N7 : acidifying effects are reciprocal and the proton "outruns" divalent metal ions. Inorganic chemistry, Vol. 42, H. 1. pp. 32-41.