Helmut G. Alt

8.7k citations

341 papers · 7.2k indexed · 1 hit paper · h-index 38

Process Chemistry and Technology top 0.1%
- Carbon dioxide utilization in catalysis 78
Inorganic Chemistry top 0.2%
- Synthesis and characterization of novel inorganic/organometallic compounds 100
- Asymmetric Hydrogenation and Catalysis 50
Organic Chemistry top 0.1%
- Organometallic Complex Synthesis and Catalysis 256
- Synthetic Organic Chemistry Methods 91
- Coordination Chemistry and Organometallics 25
Pharmaceutical Science top 1%
- Fluorine in Organic Chemistry 22
Catalysis top 5%
- Catalysis and Oxidation Reactions 24

Co-authors: Alexander Köppl Marvin D. Rausch Wolfgang Milius Max Herberhold Ulf Thewalt Lawrence B. Kool Edmond Samuel M. Jung
Cited by: Process Chemistry and Technology Inorganic Chemistry Organic Chemistry
Journals: Chemical Reviews (1 paper)Journal of the American Chemical Society (3 papers)Chemical Society Reviews (1 paper)
Partner nations: Germany United States Brazil

In The Last Decade

Helmut G. Alt

336 papers receiving 6.8k citations

Hit Papers

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Peers

Countries citing papers authored by Helmut G. Alt

Since Specialization

Citations

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

Fields of papers citing papers by Helmut G. Alt

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Helmut G. Alt. 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 Helmut G. Alt. The network helps show where Helmut G. Alt may publish in the future.

Co-authorship network

The 25 scholars most cited alongside Helmut G. Alt, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Helmut G. Alt Line = papers co-authored together Helmut G. Alt links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Halogen substituted iron(III) di(imino)pyridine complexes as catalysts for 1- pentene/1-hexene co-oligomerization reactions SHILAP Revista de lepidopterología ·Tanja H. Ritter,Helmut G. Alt	2020	4
2	Homogeneous and heterogeneous oligomerization reactions of olefins with unbridged metallocene catalysts SHILAP Revista de lepidopterología ·Tanja H. Ritter,Helmut G. Alt	2019	6
3	Intelligent catalysts for ethylene oligomerization and polymerization SHILAP Revista de lepidopterología ·Helmut G. Alt	2015	5
4	Dissymmetric dinuclear transition metal complexes as dual site catalysts for the polymerization of ethylene SHILAP Revista de lepidopterología ·Haif Al-Shammari,Helmut G. Alt	2014	3
5	Influence of triphenylphosphine on the activity of heterogeneous iridium, rhodium and platinum containing catalysts for the dehydrogenation of saturated hydrocarbons Journal of Organometallic Chemistry ·Ingrid K. Böhmer,Helmut G. Alt	2008	6
6	Self-immobilizing catalysts and cocatalysts for olefin polymerization Dalton Transactions ·Helmut G. Alt	2005	45
7	Dinuclear ansa zirconocene complexes containing a sandwich and a half-sandwich moiety as catalysts for the polymerization of ethylene Journal of Organometallic Chemistry ·Helmut G. Alt,Rainer Ernst,Ingrid K. Böhmer	2002	40
8	From the lab bench to the plant: how to commercialize a metallocene catalyst? Macromolecular Symposia ·Helmut G. Alt	2001	17
9	Synthesis and characterization of unbridged metallocene dichloride complexes with two differently mono-substituted indenyl ligands and their application as catalysts for the polymerization of ethene and propene Journal of Molecular Catalysis A Chemical ·Roland Schmidt,Matthias Deppner,Helmut G. Alt	2001	14
10	Fluorenyl complexes of zirconium and hafnium as catalysts for olefin polymerization Chemical Society Reviews ·Helmut G. Alt,Edmond Samuel	1998	117
11	C1-verbrückte Fluorenyliden–Indenylidenkomplexe des Typs (C13H8–CR2–C9H6−nR′n)ZrCl2 (n=0, 1; R=Me, Ph, Butenyl; R′=Alkyl, Alkenyl) als Metallocenkatalysatorvorstufen für die Ethylenpolymerisation Journal of Organometallic Chemistry ·Helmut G. Alt,M. Jung,Gerald Kehr	1998	38
12	Die Stellung des Zentralkomitees der SED im politischen System der DDR Helmut G. Alt	1987	1
13	Reaktionen der substituierten metallacyclischen Alkenylketon-Komplexe Cp(CO)2M[R1CCR2C(O)Me] (M = Cr, Mo, W; Cp = η5-C5Me5; R1, R2 = H, Me,Ph) mit Stickstoffmonoxid und Nitrosylchlorid Journal of Organometallic Chemistry ·Helmut G. Alt,Ulrike Freytag,Max Herberhold,Heidi I. Hayen	1987	4
14	Structural and spectroscopic comparison of the complexes Cp2M(PMe3)(CO) (M = Ti, Zr, Hf), (C9H7)2Ti(PMe3)(CO) and Cp2TiCl(PMe3); X-ray structures of Cp2Ti(PMe3)(CO) and Cp2TiCl(PMe3) Journal of Organometallic Chemistry ·Lawrence B. Kool,Marvin D. Rausch,Helmut G. Alt,Max Herberhold,Brigitte Wolf,Ulf Thewalt	1985	33
15	Photochemie von Alkyl‐Übergangsmetallkomplexen Angewandte Chemie ·Helmut G. Alt	1984	15
16	Photochemistry of Alkyltransition‐Metal Complexes Angewandte Chemie International Edition in English ·Helmut G. Alt	1984	28
17	Erzeugung und Stabilisierung von Phosphanyl- und Arsanyl - ketenen in der Koordinationssph�re von Wolfram Angewandte Chemie International Edition ·Fritz Roland Krei�l,Mathias Wolfgruber,Werner Sieber,Helmut G. Alt	1983	5
18	Thermische und Photo-induzierte Substitutionsreaktionen an der Eisen-ethyl-Verbindung CpFe(CO)₂Et. Die Molekülstruktur von CpFe(PMe₃)₂COEt (Cp =η⁵-C₅H₅)/ Thermal and Photo-Induced Substitution Reactions of the Iron Ethyl Compound CpFe(CO)₂Et. The Molecular Structure of CpFe(PMe₃)₂COEt (Cp = η⁵-C₅H₅) Zeitschrift für Naturforschung B ·Helmut G. Alt,Manfred Erwin Eichner,Brigitte M. Jansen,U. Thewalt	1982	14
19	Neue Wolfram‐Alkyl‐ und ‐Acylkomplexe mit Acetylen als Vierelektronenligand Angewandte Chemie ·Helmut G. Alt,Manfred Erwin Eichner,Brigitte M. Jansen	1982	18
20	The Photochemically-Induced Degradation of (η⁵-C₅H₅)M(CO)₃CH₃ Complexes (M = Cr, Mo, W) Zeitschrift für Naturforschung B ·Marvin D. Rausch,Thomas E. Gismondi,Helmut G. Alt,J. A. Schwäbzle	1977	21

About Helmut G. Alt

Helmut G. Alt is a scholar working on Process Chemistry and Technology, Inorganic Chemistry and Organic Chemistry, having authored 341 papers that have together received 7.2k indexed citations. Recurring topics across this work include Organometallic Complex Synthesis and Catalysis (256 papers), Synthesis and characterization of novel inorganic/organometallic compounds (100 papers), Synthetic Organic Chemistry Methods (91 papers), Carbon dioxide utilization in catalysis (78 papers), Asymmetric Hydrogenation and Catalysis (50 papers), Coordination Chemistry and Organometallics (25 papers), Catalysis and Oxidation Reactions (24 papers) and Fluorine in Organic Chemistry (22 papers). The work is most often cited by research in Process Chemistry and Technology (1.6k citations), Inorganic Chemistry (3.1k citations) and Organic Chemistry (6.2k citations). Helmut G. Alt has collaborated with scholars based in Germany, United States and Brazil. Frequent co-authors include Alexander Köppl, Marvin D. Rausch, Wolfgang Milius, Max Herberhold, Ulf Thewalt, Lawrence B. Kool, Edmond Samuel, M. Jung, Alexander C. Filippou and Manfred Erwin Eichner. Their work appears in journals such as Chemical Reviews, Journal of the American Chemical Society and Chemical Society Reviews.

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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