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Bernhard Lippert
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14
Freisinger, Eva
10
Roitzsch, Michael
10
Sanz Miguel, Pablo
7
Shen, Wei-Zheng
7
Sigel, Helmut
7
Sponer, Jirí
6
Willermann, Michael
6
Sigel, Roland
5
Lüth, Marc Sven
4
Morell Cerdà, Marta
4
Lax, Patrick
4
Müller, Jens
4
Costisella, Burkhard
4
Gupta, Deepali
4
Kampf, Gunnar
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All Publications
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2009: Shen Wei-Zheng; Trötscher-Kaus Gabriele; Lippert Bernhard
(1)H NMR spectroscopic identification of binding modes of 2,2'-bipyridine ligands in complexes of square-planar d(8) metal ions.
Dalton transactions (Cambridge, England : 2003) 2009;(39):8203-14.
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2009: Yin Lu; Sanz Miguel Pablo J; Shen Wei-Zheng; Lippert Bernhard
Pd(II)-catalyzed condensation of a mononuclear Pt-nucleobase complex to its head-tail dimer: characterization of a key intermediate and an end product.
Chemistry (Weinheim an der Bergstrasse, Germany) 2009;15(41):10723-6.
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2009: Lippert Bernhard; Gupta Deepali
Promotion of rare nucleobase tautomers by metal binding.
Dalton transactions (Cambridge, England : 2003) 2009;(24):4619-34.
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2009: Brandi-Blanco Pilar; Sanz Miguel Pablo J; Müller Barbara; Gil Bardají Elisa; Willermann Michael; Lippert Bernhard
Expanding the pH range of metal-nucleobase complexes for acid-base chemistry: properties of bis(guanine) complexes of (bpy)Pt(II) with either two major or major and minor tautomers bonded simultaneously.
Inorganic chemistry 2009;48(12):5208-15.
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2009: van der Wijst Tushar; Fonseca Guerra Célia; Swart Marcel; Bickelhaupt F Matthias; Lippert Bernhard
A ditopic ion-pair receptor based on stacked nucleobase quartets.
Angewandte Chemie (International ed. in English) 2009;48(18):3285-7.
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2009: van der Wijst Tushar; Fonseca Guerra Célia; Swart Marcel; Bickelhaupt F Matthias; Lippert Bernhard
Rare tautomers of 1-methyluracil and 1-methylthymine: tuning relative stabilities through coordination to PtII complexes.
Chemistry (Weinheim an der Bergstrasse, Germany) 2009;15(1):209-18.
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2008: Lippert Bernhard
Ligand-pKa shifts through metals: potential relevance to ribozyme chemistry.
Chemistry & biodiversity 2008;5(8):1455-74.
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2008: Shen Wei-Zheng; Schnebeck Ralf-Dieter; Freisinger Eva; Lippert Bernhard
On the interrelationship of mu-OH bridged dimers, trimers, and tetramers of (en)PtII and their Ag+ adducts.
Dalton transactions (Cambridge, England : 2003) 2008;(30):4044-9.
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2008: Shen Wei-Zheng; Lippert Bernhard
Cyclic, trinuclear PdII complex of cytidine with pronounced double cone structure.
Journal of inorganic biochemistry 2008;102(5-6):1134-40.
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2008: Freisinger Eva; Griesser Rolf; Lippert Bernhard; Moreno-Luque Cristóbal F; Niclós-Gutiérrez Juan; Ochocki Justyn; Operschall Bert P; Sigel Helmut
Comparison of the surprising metal-ion-binding properties of 5- and 6-uracilmethylphosphonate (5Umpa2- and 6Umpa2-) in aqueous solution and crystal structures of the dimethyl and di(isopropyl) esters of H2(6Umpa).
Chemistry (Weinheim an der Bergstrasse, Germany) 2008;14(32):10036-46.
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2008: Kampf Gunnar; Sanz Miguel Pablo J; Morell Cerdà Marta; Willermann Michael; Schneider Alexandra; Lippert Bernhard
Reactivity of ammonia ligands of the antitumor agent cisplatin: a unique dodecanuclear Pt4,Pd4,Ag4 platform for four cytosine model nucleobases.
Chemistry (Weinheim an der Bergstrasse, Germany) 2008;14(23):6882-91.
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2007: Holland Lars; Shen Wei-Zheng; Micklitz Wolfgang; Lippert Bernhard
Tetrakis- and tris(1-Methyluracil) complexes of Pt(II): formation and properties of a carbon-bonded nucleobase species as well as of heternonuclear derivatives.
Inorganic chemistry 2007;46(26):11356-65.
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2007: Añorbe Marta Garijo; Welzel Thea; Lippert Bernhard
Migration of a cis-(NH3)2PtII moiety along two adenine nucleobases, from N1 to N6, is markedly facilitated by additional PtII entities coordinated to N7.
Inorganic chemistry 2007;46(20):8222-7.
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2007: Lax Patrick M; Añorbe Marta Garijo; Müller Barbara; Bivián-Castro Egla Yareth; Lippert Bernhard
Varying acidity of aqua ligands in dependence on the microenvironment in mononucleobase (nb) complexes of type cis- and trans-[Pt(NH3)2(nb)(H2O)]n+.
Inorganic chemistry 2007;46(10):4036-43.
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2007: Amo-Ochoa Pilar; Sanz Miguel Pablo J; Castillo Oscar; Sabat Michal; Lippert Bernhard; Zamora Félix
Interguanine hydrogen-bonding patterns in adducts with water and Zn-purine complexes (purine is 9-methyladenine and 9-methylguanine). Unexpected preference of Zn(II) for adenine-N7 over guanine-N7.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry 2007;12(4):543-55.
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2007: Shen Wei-Zheng; Costisella Burkhard; Lippert Bernhard
Pd2Ag triangle supported by two micro3-amidopyridine ligands.
Dalton transactions (Cambridge, England : 2003) 2007;(8):851-8.
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2007: Gil Bardají Elisa; Freisinger Eva; Costisella Burkhard; Schalley Christoph A; Brüning Wolfgang; Sabat Michal; Lippert Bernhard
Mixed-metal (platinum, palladium), mixed-pyrimidine (uracil, cytosine) self-assembling metallacalix[n]arenes: dynamic combinatorial chemistry with nucleobases and metal species.
Chemistry (Weinheim an der Bergstrasse, Germany) 2007;13(21):6019-39.
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2007: Nakabayashi Yasuo; Erxleben Andrea; Létinois Ulla; Pratviel Geneviève; Meunier Bernard; Holland Lars; Lippert Bernhard
Spontaneous reduction of mixed 2,2'-bipyridine/methylamine/chloro complexes of Pt(IV) in water in the presence of light is accompanied by complex isomerization, loss of methylamine, and formation of a strong oxidant, presumably HOCl.
Chemistry (Weinheim an der Bergstrasse, Germany) 2007;13(14):3980-8.
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2006: Morell Cerdà Marta; Amantia David; Costisella Burkhard; Houlton Andrew; Lippert Bernhard
Multiple metal binding to 6-oxopurine nucleobases as a source of deprotonation. The role of metal ions at N7 and N3.
Dalton transactions (Cambridge, England : 2003) 2006;(32):3894-9.
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2006: Sanz Miguel Pablo J; Lax Patrick; Lippert Bernhard
(Dien)M(II) (M=Pd, Pt) and (NH3)3Pt(II) complexes of 1-methylcytosine: Linkage and rotational isomerism, metal-promoted deamination, and pathways to dinuclear species.
Journal of inorganic biochemistry 2006;100(5-6):980-91.
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2006: Müller Jens; Lippert Bernhard
Imposing a three-way junction on DNA or recognizing one: a metal triple helicate meets double helix.
Angewandte Chemie (International ed. in English) 2006;45(16):2503-5.
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2006: Willermann Michael; Mulcahy Clodagh; Sigel Roland K O; Cerdà Marta Morell; Freisinger Eva; Sanz Miguel Pablo J; Roitzsch Michael; Lippert Bernhard
Pyrazine as a building block for molecular architectures with PtII.
Inorganic chemistry 2006;45(5):2093-9.
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2005: Roitzsch Michael; Lippert Bernhard
Structural precursor of the hemideprotonated guanine pair.
Chemical communications (Cambridge, England) 2005;(48):5991-3.
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2005: Roitzsch Michael; Lippert Bernhard
Inverting the charges of natural nucleobase quartets: a planar platinum-purine quartet with pronounced sulfate affinity.
Angewandte Chemie (International ed. in English) 2005;45(1):147-50.
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2005: Shen Wei-Zheng; Gupta Deepali; Lippert Bernhard
Cyclic trimer versus head-tail dimer in metal-nucleobase complexes: importance of relative orientation (syn, anti) of the metal entities and relevance as a metallaazacrown compound.
Inorganic chemistry 2005;44(23):8249-58.
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2005: Roitzsch Michael; Añorbe Marta Garijo; Miguel Pablo J Sanz; Müller Barbara; Lippert Bernhard
The role of intramolecular hydrogen bonding on nucleobase acidification following metal coordination: possible implications of an "indirect" role of metals in acid-base catalysis of nucleic acids.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry 2005;10(7):800-12.
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2005: Gupta Deepali; Roitzsch Michael; Lippert Bernhard
Isocytosine as a hydrogen-bonding partner and as a ligand in metal complexes.
Chemistry (Weinheim an der Bergstrasse, Germany) 2005;11(22):6643-52.
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2005: Amo-Ochoa Pilar; Sanz Miguel Pablo J; Lax Patrick; Alonso Inés; Roitzsch Michael; Zamora Félix; Lippert Bernhard
Models of putative (AH)G(AH)G nucleobase quartets.
Angewandte Chemie (International ed. in English) 2005;44(35):5670-4.
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2005: Sanz Miguel Pablo J; Lippert Bernhard
Cationic tetrakis(nucleobase)complexes of PtII as metalloligands and potential building blocks for molecular architectures.
Dalton transactions (Cambridge, England : 2003) 2005;(9):1679-86.
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2004: Sponer Judit E; Sanz Miguel Pablo J; Rodríguez-Santiago Luis; Erxleben Andrea; Krumm Michael; Sodupe Mariona; Sponer Jirí; Lippert Bernhard
Metal-mediated deamination of cytosine: experiment and DFT calculations.
Angewandte Chemie (International ed. in English) 2004;43(40):5396-9.
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2004: Roitzsch Michael; Lippert Bernhard
Feasibility of a two-metal, four-purine nucleobase quartet motif.
Inorganic chemistry 2004;43(18):5483-5.
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2004: Knobloch Bernd; Sigel Roland K O; Lippert Bernhard; Sigel Helmut
Two metal ions coordinated to a purine residue tolerate each other well.
Angewandte Chemie (International ed. in English) 2004;43(29):3793-5.
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2004: Gupta Deepali; Huelsekopf Markus; Morell Cerdà Marta; Ludwig Ralf; Lippert Bernhard
Complex formation of isocytosine tautomers with PdII and PtII.
Inorganic chemistry 2004;43(11):3386-93.
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2004: Roitzsch Michael; Lippert Bernhard
Metal coordination and imine-amine hydrogen bonding as the source of strongly shifted adenine pKa values.
Journal of the American Chemical Society 2004;126(8):2421-4.
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2004: Garijo Añorbe Marta; Lüth Marc Sven; Roitzsch Michael; Morell Cerdà Marta; Lax Patrick; Kampf Gunnar; Sigel Helmut; Lippert Bernhard
Perturbation of the NH2 pKa value of adenine in platinum(II) complexes: distinct stereochemical internucleobase effects.
Chemistry (Weinheim an der Bergstrasse, Germany) 2004;10(4):1046-57.
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2003: Barea Elisa; Navarro Jorge A R; Salas Juan M; Quirós Miguel; Willermann Michael; Lippert Bernhard
Chiral pyrimidine metallacalixarenes: synthesis, structure and host-guest chemistry.
Chemistry (Weinheim an der Bergstrasse, Germany) 2003;9(18):4414-21.
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2003: Müller Jens; Freisinger Eva; Sanz Miguel Pablo J; Lippert Bernhard
Diplatinum(III) complexes with four bridging 1-methylcytosinato nucleobases derived from a mononuclear trans-(NH3)2PtII complex and CuII.
Inorganic chemistry 2003;42(17):5117-25.
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2003: Freisinger Eva; Rother Irene B; Luth Marc Sven; Lippert Bernhard
Canonical and unconventional pairing schemes between bis(nucleobase) complexes of trans-a2PtII: artificial nucleobase quartets and C-H...N bonds.
Proceedings of the National Academy of Sciences of the United States of America 2003;100(7):3748-53.
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2003: Griesser Rolf; Kampf Gunnar; Kapinos Larisa E; Komeda Seiji; Lippert Bernhard; Reedijk Jan; Sigel Helmut
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 2003;42(1):32-41.
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2002: Schmidt Kathrin S; Boudvillain Marc; Schwartz Annie; van der Marel Gijs A; van Boom Jacques H; Reedijk Jan; Lippert Bernhard
Monofunctionally trans-diammine platinum(II)-modified peptide nucleic acid oligomers: a new generation of potential antisense drugs.
Chemistry (Weinheim an der Bergstrasse, Germany) 2002;8(24):5566-70.
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2002: Roitzsch Michael; Rother Irene B; Willermann Michael; Erxleben Andrea; Costisella Burkhard; Lippert Bernhard
Association patterns of platinated purine nucleobases in metal-modified pairs and triples.
Inorganic chemistry 2002;41(23):5946-53.
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2002: Brüning Wolfgang; Freisinger Eva; Sabat Michal; Sigel Roland K O; Lippert Bernhard
N1 and N3 linkage isomers of neutral and deprotonated cytosine with trans-[(CH3NH2)2PtII.
Chemistry (Weinheim an der Bergstrasse, Germany) 2002;8(20):4681-92.
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2002: Schmidt Kathrin S; Reedijk Jan; Weisz Klaus; Basilio Janke Eline M; Sponer Judit E; Sponer Jiri; Lippert Bernhard
Loss of Hoogsteen pairing ability upon N1 adenine platinum binding.
Inorganic chemistry 2002;41(11):2855-63.
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2002: Onoa G B; Moreno V; Freisinger E; Lippert B
Pd(II)- and Pt(II)-cimetidine complexes. Crystal structure of trans-[Pt(N,S-cimetidine)(2)]Cl(2)(*)12H(2)O.
Journal of inorganic biochemistry 2002;89(3-4):237-47.
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2001: Lüth M S; Willermann M; Lippert B
Extreme (10(9)) acidification of adenine-NH2 in an open platinated nucleobase quartet. A pH switch with potential as a biological acid/base catalyst.
Chemical communications (Cambridge, England) 2001;(20):2058-9.
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2001: Sponer J E; Leszczynski J; Glahé F; Lippert B; Sponer J
Protonation of platinated adenine nucleobases. Gas phase vs condensed phase picture.
Inorganic chemistry 2001;40(14):3269-78.
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2001: Lüth M S; Freisinger E; Lippert B
Metal-modified nucleobase pairs and triplets as cytosine receptors.
Chemistry (Weinheim an der Bergstrasse, Germany) 2001;7(10):2104-13.
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2001: Sigel R K; Thompson S M; Freisinger E; Glahé F; Lippert B
Metal-modified nucleobase sextet: joining four linear metal fragments (trans-a2PtII) and six model nucleobases to an exceedingly stable entity.
Chemistry (Weinheim an der Bergstrasse, Germany) 2001;7(9):1968-80.
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2001: Kampf G; Lüth M S; Kapinos L E; Müller J; Holý A; Lippert B; Sigel H
Formation of ternary complexes by coordination of (diethylenetriamine)-platinum(II) to N1 or N7 of the adenine moiety of the antiviral nucleotide analogue 9.
Chemistry (Weinheim an der Bergstrasse, Germany) 2001;7(9):1899-908.
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2001: Freisinger E; Schimanski A; Lippert B
Thymine-metal ion interactions: relevance for thymine quartet structures.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry 2001;6(4):378-89.
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2000: Müller J; Drumm M; Boudvillain M; Leng M; Sletten E; Lippert B
Parallel-stranded DNA with Hoogsteen base pairing stabilized by a trans-[Pt(NH3)2]2+ cross-link: characterization and conversion into a homodimer and a triplex.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry 2000;5(5):603-11.
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2000: Sigel R K; Freisinger E; Lippert B
Effects of N7-methylation, N7-platination, and C8-hydroxylation of guanine on H-bond formation with cytosine: platinum coordination strengthens the Watson-Crick pair.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry 2000;5(3):287-99.
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2000: Navarro J A; Freisinger E; Lippert B
Self-assembly of palladium(II) and platinum(II) complexes of 2-hydroxypyrimidine to novel metallacalix[4]arenes. Receptor properties through multiple H-bonding interactions.
Inorganic chemistry 2000;39(11):2301-5.
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2000: Müller J; Sigel R K; Lippert B
Heavy metal mutagenicity: insights from bioinorganic model chemistry.
Journal of inorganic biochemistry 2000;79(1-4):261-5.
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2000: Lüth M S; Song B; Lippert B; Sigel H
Isomeric equilibria in aqueous solution involving aromatic ring stacking in the sexternary complexes formed by the quaternary cis-(NH3)2Pt(2'-deoxyguanosine-N7)(dGMP-N7) complex and the binary Cu(2,2'-bipyridine)2+ or Cu(1,10-phenanthroline)2+ complexes (dGMP2- = 2'-deoxyguanosine 5'-monophosphate).
Inorganic chemistry 2000;39(6):1305-10.
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2000: Navarro J A; Freisinger E; Lippert B
From simple trans-[a2Pt(2-hydroxypyrimidine)2]2+ (a = NH3, CH3NH2) complexes to structures of higher complexity. Molecular recognition of 2-aminopyrimidine by hydrogen bond formation and reactivity toward additional metal ions.
Inorganic chemistry 2000;39(6):1059-65.
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1999: Janik M B; Lippert B
trans-(NH3)(2)Pt(II)-modified deoxyoligonucleotides as potential antisense agents: cross-linking reactions between two 12-mers.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry 1999;4(5):645-53.
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1999: Sponer J; Sabat M; Burda J V; Leszczynski J; Hobza P; Lippert B
Metal ions in non-complementary DNA base pairs: an ab initio study of Cu(I), Ag(I), and Au(I) complexes with the cytosine-adenine base pair.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry 1999;4(5):537-45.
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1999: Janik M B; Hegmans A; Freisinger E; Lippert B
Reactivity of an extremely sterically crowded monofunctional Pt complex, [Pt(1-MeC-N3)3(H2O)]2+ (1-MeC = 1-methylcytosine), toward model nucleobases and selectivity toward guanine in single- and double-stranded deoxyoligonucleotides.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry 1999;4(1):130-9.
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1996: Song B; Oswald G; Bastian M; Sigel H; Lippert B
Extent of the Acidification by N7-Coordinated cis-Diammine-Platinum(II) on the Acidic Sites of Guanine Derivatives.
Metal-based drugs 1996;3(3):131-41.
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