L. D. Hansen

932 total citations · 1 hit paper
10 papers, 822 citations indexed

About

L. D. Hansen is a scholar working on Spectroscopy, Organic Chemistry and Molecular Biology. According to data from OpenAlex, L. D. Hansen has authored 10 papers receiving a total of 822 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Spectroscopy, 4 papers in Organic Chemistry and 2 papers in Molecular Biology. Recurrent topics in L. D. Hansen's work include Molecular Sensors and Ion Detection (3 papers), Analytical Chemistry and Chromatography (3 papers) and Chemical Synthesis and Analysis (2 papers). L. D. Hansen is often cited by papers focused on Molecular Sensors and Ion Detection (3 papers), Analytical Chemistry and Chromatography (3 papers) and Chemical Synthesis and Analysis (2 papers). L. D. Hansen collaborates with scholars based in Norway, United States and South Africa. L. D. Hansen's co-authors include Reed M. Izatt, Jeppe Christensen, Richard E. Terry, Barry L. Haymore, N. Kent Dalley, Jerald S. Bradshaw, Delbert J. Eatough, D. Nelson, Trygve Andreassen and Odd R. Gautun and has published in prestigious journals such as Journal of the American Chemical Society, Inorganic Chemistry and Tetrahedron.

In The Last Decade

L. D. Hansen

10 papers receiving 751 citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Calorimetric titration study of the interaction of several uni- and bivalent cations with 15-crown-5, 18-crown-6, and two isomers of dicyclohexo-18-crown-6 in aqueous solution at 25.degree.C and .mu. = 0.1

1976 471 citations Reed M. Izatt, Richard E. Terry et al. Journal of the American Chemical Society profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
L. D. Hansen Norway	9	416	254	155	151	147	10	822
Tadashi Iwachido Japan	18	460 1.1×	184 0.7×	214 1.4×	195 1.3×	173 1.2×	61	899
Uriel Olsher United States	14	291 0.7×	265 1.0×	111 0.7×	141 0.9×	199 1.4×	29	772
Eiichi Sekido Japan	17	229 0.6×	217 0.9×	258 1.7×	130 0.9×	209 1.4×	71	794
D. M. DISHONG United States	17	488 1.2×	449 1.8×	129 0.8×	261 1.7×	178 1.2×	23	940
Rose Ann Schultz United States	15	422 1.0×	387 1.5×	105 0.7×	240 1.6×	139 0.9×	19	832
B. Buděšínský United States	14	130 0.3×	167 0.7×	107 0.7×	72 0.5×	80 0.5×	78	552
K. B. Yatsimirskii Ukraine	13	107 0.3×	237 0.9×	75 0.5×	354 2.3×	194 1.3×	115	1000
B. D. Flockhart United Kingdom	17	169 0.4×	364 1.4×	29 0.2×	293 1.9×	161 1.1×	43	953
S. N. Bhat India	15	290 0.7×	454 1.8×	50 0.3×	123 0.8×	46 0.3×	51	856
Kazuo Aomura Japan	16	165 0.4×	127 0.5×	80 0.5×	268 1.8×	197 1.3×	85	686

Countries citing papers authored by L. D. Hansen

Since Specialization

Citations

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

Fields of papers citing papers by L. D. Hansen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of L. D. Hansen

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

All Works

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10 of 10 papers shown

1.

Hansen, L. D., et al.. (2010). β-octabromo-meso-tris(pentafluorophenyl)corrole: reductive demetalation-based synthesis of a heretofore inaccessible, perhalogenated free-base corrole. Journal of Porphyrins and Phthalocyanines. 14(6). 509–512. 21 indexed citations

2.

Andreassen, Trygve, et al.. (2009). The use of two optically active N-sulfinyl α-imino esters in the stereoselective aza-Diels–Alder reaction. Tetrahedron. 65(14). 2806–2817. 17 indexed citations

3.

Andreassen, Trygve, L. D. Hansen, & Odd R. Gautun. (2008). Diastereoselective Synthesis of Heteroaromatic Glycine Derivatives. European Journal of Organic Chemistry. 2008(29). 4871–4876. 23 indexed citations

4.

Lewis, L. J., et al.. (1990). The Determination of Nicotine and Cotinine by Ion Pair Reversed-Phase Chromatography. Journal of Chromatographic Science. 28(4). 200–203. 11 indexed citations

5.

Lewis, L. J., et al.. (1990). Determination of Fluoride in Atmospheric Samples by Ion Pair Reversed-Phase Chromatography. Journal of Chromatographic Science. 28(9). 490–492. 4 indexed citations

6.

Izatt, Reed M., Richard E. Terry, D. Nelson, et al.. (1976). Calorimetric titration study of the interaction of some uni- and bivalent cations with benzo-15-crown-5, 18-crown-6, dibenzo-24-crown-8, and dibenzo-27-crown-9 in methanol-water solvents, at 25.degree.C and .mu. = 0.1. Journal of the American Chemical Society. 98(24). 7626–7630. 227 indexed citations

7.

Izatt, Reed M., Richard E. Terry, Barry L. Haymore, et al.. (1976). Calorimetric titration study of the interaction of several uni- and bivalent cations with 15-crown-5, 18-crown-6, and two isomers of dicyclohexo-18-crown-6 in aqueous solution at 25.degree.C and .mu. = 0.1. Journal of the American Chemical Society. 98(24). 7620–7626. 471 indexed citations breakdown →

8.

Bradshaw, Jerald S., et al.. (1975). A new class of macrocyclic ether–ester ligands. Journal of the Chemical Society Chemical Communications. 874–875. 19 indexed citations

9.

Hansen, L. D. & Loren G. Hepler. (1972). Field and Resonance Components of Substituent Effects in Relation to the Hammett Equation. Canadian Journal of Chemistry. 50(7). 1030–1035. 19 indexed citations

10.

Hansen, L. D., et al.. (1971). Effects of hydrocarbon chain length on the thermodynamics of formation of bis(n-alkylamino)silver(I) complex ions. Inorganic Chemistry. 10(7). 1439–1442. 10 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.

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