Walter Grahn

995 total citations
62 papers, 814 citations indexed

About

Walter Grahn is a scholar working on Organic Chemistry, Materials Chemistry and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, Walter Grahn has authored 62 papers receiving a total of 814 indexed citations (citations by other indexed papers that have themselves been cited), including 40 papers in Organic Chemistry, 18 papers in Materials Chemistry and 16 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in Walter Grahn's work include Nonlinear Optical Materials Research (15 papers), Porphyrin and Phthalocyanine Chemistry (9 papers) and Inorganic and Organometallic Chemistry (7 papers). Walter Grahn is often cited by papers focused on Nonlinear Optical Materials Research (15 papers), Porphyrin and Phthalocyanine Chemistry (9 papers) and Inorganic and Organometallic Chemistry (7 papers). Walter Grahn collaborates with scholars based in Germany, United States and Japan. Walter Grahn's co-authors include Peter G. Jones, Christoph Bräuchle, Stefan Stadler, Dieter Scherer, Grant Bourhill, Hans‐Hermann Johannes, C. REICHARDT, Stefan Wiese, Wolfgang Kowalsky and C. L. Reichardt and has published in prestigious journals such as Journal of the American Chemical Society, Angewandte Chemie International Edition and Chemical Physics Letters.

In The Last Decade

Walter Grahn

59 papers receiving 753 citations

Peers

Countries citing papers authored by Walter Grahn

Since Specialization

Citations

This map shows the geographic impact of Walter Grahn's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Walter Grahn with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Walter Grahn more than expected).

Fields of papers citing papers by Walter Grahn

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Walter Grahn. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Walter Grahn. The network helps show where Walter Grahn may publish in the future.

Co-authorship network of co-authors of Walter Grahn

This figure shows the co-authorship network connecting the top 25 collaborators of Walter Grahn. A scholar is included among the top collaborators of Walter Grahn based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Walter Grahn. Walter Grahn is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Tetra-tert-butylallen und sein Radikalkation 2006 ·Angewandte Chemie ·(unknown), (unknown), (unknown), Werner Massa, Walter Grahn, Armin Berndt	0
2	Donor-Acceptor Oligoenes with a Locked all-trans Conformation: Synthesis and Linear and Nonlinear Optical Properties 2002 ·Chemistry - A European Journal ·(unknown), Walter Grahn, Katarzyna Lukaszuk, Christopher Klein, Rüdiger Wortmann, (unknown), Dieter Scherer	58
3	Mass Spectrometry of Oligomeric Cyanines and Squaraines of the Indole Series: Fast Atom Bombardment-Induced Chemical Reactions 2002 ·Zeitschrift für Naturforschung B ·Thomas Dülcks, Walter Grahn, Hans‐Hermann Johannes, (unknown), (unknown), Hans‐Martin Schiebel, (unknown)	0
4	Approaching P -Indoxyle, P -Indigo and P -Vinylchalcogenides 2002 ·Phosphorus, sulfur, and silicon and the related elements ·(unknown), (unknown), Walter Grahn, (unknown), (unknown), (unknown)	5
5	2,4-Bis{[6-(2,2-dimethylpropyl)-3-ethyl-1,3-benzothiazol-2(3H)-ylidene]methyl}cyclobutenediylium-1,3-diolate 2001 ·Acta Crystallographica Section C Crystal Structure Communications ·(unknown), Walter Grahn, Ina Dix, Peter G. Jones	7
6	A novel entry into a new class of cyclophane derivatives: synthesis of (±)-[2.2]paracyclophane-4-thiol 2001 ·Tetrahedron Letters ·Vinayak V. Kane, (unknown), Walter Grahn, Ludger Ernst, Ina Dix, Peter G. Jones, Henning Hopf	25
7	Nonlinear optical chromophores with isoquinolines, thieno[2,3-c]pyridines and 2-(2′-thienyl)pyridines as inherently polarized π-electron bridges 1998 ·Journal of the Chemical Society Perkin Transactions 2 ·(unknown), M. Meier, Walter Grahn, (unknown), Elmar Schmälzlin, Stefan Stadler, Klaus Meerholz, Christoph Bräuchle, Peter G. Jones	20
8	Alternation and saturation effects in the chain-length dependences of the third-order hyperpolarizabilities of cyanines 1998 ·Journal of the Optical Society of America B ·W. Werncke, (unknown), A. Lau, Walter Grahn, H.‐H. Johannes, Lars Dähne	6
9	Third-order hyperpolarizabilities of a homologous series of meso-nitrogen substituted thiacyanines 1997 ·Chemical Physics Letters ·W. Werncke, (unknown), A. Lau, Walter Grahn, H.‐H. Johannes	1
10	Halogenation of 1‐Ethoxy‐1‐oxophosphindolin‐3‐one, a Potential Phosphaindigo Precursor 1997 ·Chemische Berichte ·(unknown), F. Ruthe, Peter G. Jones, Wolf-Walther Du Μοnt, Walter Grahn	2
11	Novel, Blue‐Transparent Frequency Doublers Based on 1,8‐Di(hetero)arylnaphthalenes 1995 ·Angewandte Chemie International Edition in English ·(unknown), Walter Grahn, Stefan Stadler, (unknown), Grant Bourhill, Christoph Bräuchle, (unknown), Peter G. Jones	70
12	Neuartige blautransparente Frequenzverdoppler auf der Basis von 1,8‐Di(hetero)aryl‐naphthalinen 1995 ·Angewandte Chemie ·(unknown), Walter Grahn, (unknown), Stefan Stadler, (unknown), Grant Bourhill, Christoph Bräuchle, Peter G. Jones	16
13	J‐Aggregate von 4‐Iod‐bis(dimethylamino)heptamethinium‐triiodid Synthese, Struktur und optische Eigenschaften 1994 ·Chemische Berichte ·Lars Dähne, Walter Grahn, (unknown), Atsushi Kawamoto, Jirō Tanaka	1
14	3,3′‐Bis(dicyanomethylene)‐4,4,4′,4′‐tetramethyl‐2,2′‐bithiolanylidene, a Compound Containing the Fundamental Chromophore of Thioindigo: (E/Z) and Valence Isomers, Thermo‐ and Photochromism 1994 ·Angewandte Chemie International Edition in English ·Andreas H. Pawlik, Walter Grahn, (unknown), Peter G. Jones, Ludger Ernst	4
15	Ein weiterer erfolgloser Versuch, Tetra‐tert‐butylethylen herzustellen 1987 ·Chemische Berichte ·(unknown), Walter Grahn, Henning Hopf, Cecilia Anaya de Parrodi	12
16	Konformationsanalyse von Polymethinen I. Erstmaliger Nachweis vondi-,tri- undall-cis-Konformationen bei sterisch gehinderten Trimethincyaninen (Carbocyaninen) der Indolin- und Benzothiazolreihe 1983 ·Angewandte Chemie International Edition ·Rudolf Allmann, (unknown), Reinhard Benn, Walter Grahn, (unknown), (unknown)	14
17	Erstmaliger Nachweis von di‐, tri‐ und all‐cis‐Konformationen bei sterisch gehinderten Trimethincyaninen (Carbocyaninen) der Indolin‐ und Benzothiazolreihe 1983 ·Angewandte Chemie ·Rudolf Allmann, (unknown), Reinhard Benn, Walter Grahn, (unknown), A. Waśkowska	5
18	ESCA-Spektren heterocyclischer Immoniumealze / X-ray Photoelectron Spectra of Heterocyclic Immonium Salts 1977 ·Zeitschrift für Naturforschung B ·(unknown), (unknown), Walter Grahn	4
19	Synthesen mit substituierten Malondialdehyden, XVIII. Darstellung und Struktur von heteroanalogen Arylazomalondialdehyden und as‐Triazino[4,3‐b]indazolen 1974 ·Chemische Berichte ·Rudolf Allmann, Tony Debaerdemaeker, Walter Grahn, C. L. Reichardt	5
20	Synthesen mit substituierten Malondialdehyden, VI. Darstellung und Eigenschaften von γ‐Arylazo‐pentamethincyanin‐Farbstoffen 1970 ·Chemische Berichte ·(unknown), Walter Grahn	34

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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