Stefan L. Spassov

1.1k total citations
98 papers, 879 citations indexed

About

Stefan L. Spassov is a scholar working on Organic Chemistry, Spectroscopy and Molecular Biology. According to data from OpenAlex, Stefan L. Spassov has authored 98 papers receiving a total of 879 indexed citations (citations by other indexed papers that have themselves been cited), including 55 papers in Organic Chemistry, 34 papers in Spectroscopy and 27 papers in Molecular Biology. Recurrent topics in Stefan L. Spassov's work include Molecular spectroscopy and chirality (23 papers), Analytical Chemistry and Chromatography (20 papers) and Natural product bioactivities and synthesis (11 papers). Stefan L. Spassov is often cited by papers focused on Molecular spectroscopy and chirality (23 papers), Analytical Chemistry and Chromatography (20 papers) and Natural product bioactivities and synthesis (11 papers). Stefan L. Spassov collaborates with scholars based in Bulgaria, Belgium and United Kingdom. Stefan L. Spassov's co-authors include Peter Y. Malakov, M. HAIMOVA, Georgi Y. Papanov, Nedjalka Handjieva, H. Duddeck, Симеон Попов, Elena Stanoeva, Angelina Georgieva, Svetlana Simova and N. M. Mollov and has published in prestigious journals such as Journal of the American Chemical Society, Tetrahedron and Phytochemistry.

In The Last Decade

Stefan L. Spassov

91 papers receiving 828 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Stefan L. Spassov Bulgaria	16	407	256	205	191	103	98	879
Wolfgang Robien Austria	19	270 0.7×	480 1.9×	216 1.1×	299 1.6×	70 0.7×	87	1.1k
Charles J. Kelley United States	18	388 1.0×	536 2.1×	258 1.3×	93 0.5×	95 0.9×	45	1.3k
E. S. Waight United Kingdom	17	357 0.9×	347 1.4×	298 1.5×	134 0.7×	50 0.5×	83	962
B. S. Joshi India	22	608 1.5×	484 1.9×	291 1.4×	101 0.5×	121 1.2×	88	1.4k
Trevor A. Crabb United Kingdom	20	838 2.1×	531 2.1×	146 0.7×	267 1.4×	51 0.5×	150	1.5k
V. Zabel Germany	15	311 0.8×	248 1.0×	86 0.4×	123 0.6×	48 0.5×	46	808
Eszter Gács‐Baitz Hungary	22	857 2.1×	487 1.9×	237 1.2×	299 1.6×	66 0.6×	103	1.4k
M. FETIZON France	20	968 2.4×	544 2.1×	135 0.7×	252 1.3×	59 0.6×	138	1.7k
Melvyn V. Sargent Australia	21	1.2k 2.9×	384 1.5×	258 1.3×	212 1.1×	76 0.7×	164	1.9k
SR Johns Australia	19	540 1.3×	420 1.6×	233 1.1×	105 0.5×	42 0.4×	95	1.1k

Countries citing papers authored by Stefan L. Spassov

Since Specialization

Citations

This map shows the geographic impact of Stefan L. Spassov'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 Stefan L. Spassov with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Stefan L. Spassov more than expected).

Fields of papers citing papers by Stefan L. Spassov

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Stefan L. Spassov. 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 Stefan L. Spassov. The network helps show where Stefan L. Spassov may publish in the future.

Co-authorship network of co-authors of Stefan L. Spassov

This figure shows the co-authorship network connecting the top 25 collaborators of Stefan L. Spassov. A scholar is included among the top collaborators of Stefan L. Spassov 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 Stefan L. Spassov. Stefan L. Spassov is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Simova, Svetlana, Galya Ivanova, & Stefan L. Spassov. (2003). Alternative NMR method for quantitative determination of acyl positional distribution in triacylglycerols and related compounds. Chemistry and Physics of Lipids. 126(2). 167–176. 20 indexed citations

Ivanova, Galya, Stefan L. Spassov, Jan Sandström, et al.. (1996). Crystal Structure of the Silver 1,3-Propanediamine Complex [Ag(NH2CH2CH2CH2NH2)]ClO4.. Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry. 50. 952–953. 3 indexed citations

Ivanov, Petko M., et al.. (1996). Conformational analysis of diastereoisomeric tetraphenyl-substituted pyrrolidines. Journal of Molecular Structure. 377(1). 19–26. 4 indexed citations

Ivanova, Galya, Stefan L. Spassov, Jan Sandström, et al.. (1996). Stereochemical Studies of 1,2-Di(thio)acetamidocyclohexanes and their N,N'-Dimethyl Derivatives by NMR and CD Spectroscopy and by Molecular Mechanics Calculations.. Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry. 50. 938–951. 3 indexed citations

Spassov, Stefan L., et al.. (1993). Conformational analysis of sisomicin and penta-N-di-O-acetylsisomicin using NMR spectroscopy and molecular mechanics calculations. Journal of Molecular Structure. 291(2-3). 191–195.

Handjieva, Nedjalka, et al.. (1993). Iridoid glycosides from Linaria species. Tetrahedron. 49(41). 9261–9266. 26 indexed citations

Bock, Klaus, Henrik Pedersen, Stefan L. Spassov, et al.. (1988). Synthesis of 6-(S) Deuterium-Labelled Derivatives of Maltose and Isomaltose.. Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry. 42b. 190–195. 17 indexed citations

Bock, Klaus, Henrik Pedersen, Stefan L. Spassov, et al.. (1988). The Substrate Specificity of the Enzyme Amyloglucosidase (AMG). Part II. 6-Substituted Maltose Derivatives.. Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry. 42b. 75–85. 19 indexed citations

Nielsen, Merete Folmer, Vernon D. Parker, Stefan L. Spassov, et al.. (1988). The Association Reactions of Ion Radicals with Neutral Molecules. VI. One-to-One and One-to-Two Complexes of Dianions with Hydroxylic Compounds.. Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry. 42b. 93–100. 1 indexed citations

10.

Lagercrantz, Carl, Mikael Ekström, Stefan L. Spassov, et al.. (1988). Oxidation of Some 2-Oximino-1-3-dioxo Compounds to Iminoxy Radicals by Horseradish Peroxidase and Hydrogen Peroxide Studied by Electron Spin Resonance (ESR) Spectroscopy.. Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry. 42b. 414–416. 9 indexed citations

11.

Spassov, Stefan L., et al.. (1988). NMR SPECTRA AND STEREOCHEMISTRY OF DIASTEREOISOMERIC 4,5-DIPHENYL-CYCLOPHOSPHAMIDES. Phosphorous and Sulfur and the Related Elements. 37(3-4). 199–204. 5 indexed citations

12.

Mikhova, B. M., et al.. (1987). NMR spectra and stereochemistry of some 2,3,4,5-tetrasubstituted pyrrolidines. Journal of Molecular Structure. 161. 231–235. 3 indexed citations

13.

Spassov, Stefan L., et al.. (1985). Applicability of vicinal heteronuclear (¹³C‐¹H, ¹⁵N‐¹H, ¹³C‐¹⁵N) coupling constants for conformational analysis of amino acids: Phenylalanine, α‐aminobutyric acid and β‐alanine. Magnetic Resonance in Chemistry. 23(6). 474–477. 6 indexed citations

14.

Spassov, Stefan L., et al.. (1982). 1H NMR spectra and stereochemistry of diastereomeric 2-arylamino-1,2-diarylethanephosphonic acid esters. Journal of Molecular Structure. 84(1-2). 91–96. 4 indexed citations

15.

Spassov, Stefan L., et al.. (1979). Conformational studies of 2-methyl-3-phenylpropionic acid, 2-phenylbutyric acid and their methyl esters by NMR spectroscopy. Journal of Molecular Structure. 53. 219–224. 8 indexed citations

16.

Spassov, Stefan L. & Svetlana Simova. (1978). Conformational analysis of 3-arylpropanoic acids and their methyl esters by 1H nuclear magnetic resonance spectroscopy. Journal of the Chemical Society Perkin Transactions 2. 1113–1113. 5 indexed citations

17.

Mollov, N. M., et al.. (1978). Über die struktur von chamaetin, ein neues chinolizidin-alkaloid aus chamaecytisus link. Tetrahedron Letters. 19(17). 1453–1454. 2 indexed citations

18.

Spassov, Stefan L., et al.. (1974). Nuclear magnetic resonance studies of internal rotation: IV—rotational barriers and conformation of phthalic amides. Organic Magnetic Resonance. 6(1). 20–22. 4 indexed citations

19.

Spassov, Stefan L., N. M. Mollov, & Ivo C. Ivanov. (1971). Notizen: Rotational Barrier of the Formyl Group in Leontiformine. Zeitschrift für Naturforschung B. 26(4). 373–373. 1 indexed citations

20.

Reinheckel, H., et al.. (1965). �ber die Umsetzung von ?-Oximino-carbons�ure-methylestern mit Phenylisocyanat. Monatshefte für Chemie - Chemical Monthly. 96(5). 1639–1645. 1 indexed citations

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.

Explore authors with similar magnitude of impact