chemistry

Poul Jørgensen (chemist)

Poul Jørgensen (chemist) is a chemistry topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Poul Jørgensen (chemist) rather than just read about it. In short: Poul Jørgensen (born 2 March 1944) is professor of chemistry at the Department of Chemistry, Aarhus University (AU), Denmark and director of the qLEAP Center for Theoretical Chemistry at AU, which was established in April 2012. Jørgensen has made seminal contributions to the field of electronic structure theory.

Key takeaways

Poul Jørgensen (chemist) belongs to chemistry; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
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Reproduce the core statement of Poul Jørgensen (chemist) from memory before moving on to harder problems.

Reference excerpt

Poul Jørgensen (born 2 March 1944) is professor of chemistry at the Department of Chemistry, Aarhus University (AU), Denmark and director of the qLEAP Center for Theoretical Chemistry at AU, which was established in April 2012. Jørgensen has made seminal contributions to the field of electronic structure theory. He is also one of the main authors of the DALTON program and a member of the International Academy of Quantum Molecular Science.

Research Jørgensen's list of peer-reviewed publications contains numerous self-contained articles which, in many cases, have become central sources within the field of electronic structure theory. His areas of research have been diverse and include work on:

Selected published works Jørgensen has written more than 350 publications in peer-reviewed international journals, in addition to four books (3 co-authored and 1 edited),

Helgaker, Trygve; Jørgensen, Poul; Olsen, Jeppe (2000). Molecular Electronic-Structure Theory. West Sussex, England: Wiley & Sons Ltd. ISBN 0471967556. Jørgensen, Poul; Simons, Jack, eds. (1986). Geometrical Derivatives of Energy Surfaces and Molecular Properties. NATO ASI series. Dordrecht, Netherlands: D. Reidel Publishing Company. ISBN 9027721769. Jørgensen, Poul; Oddershede, Jens (1982). Problems in Quantum Chemistry. Massachusetts, USA: Addison Wesley. ISBN 0201054868. Jørgensen, Poul; Simons, Jack (1981). Second Quantization Based Methods in Quantum Chemistry. New York, USA: Academic Press. ISBN 0124121969. He had more than 19,000 citations and a h-index of 68 (according to ISI Web of Knowledge database). He has also organized the "Sostrup Summer School - Quantum Chemistry and Molecular Properties" alongside Trygve Helgaker and Jeppe Olsen biannually since 1990.

Academic career

Jørgensen's career has been outlined in a Special Issue of Advances in Quantum Chemistry

1972–73 PostDoc with Professor Yngve Öhrn in Florida 1974 PostDoc with Professor Jack Simons in Utah 1974–75 PostDoc with Professor V. McKoy in Pasadena 1976 Associate Professor of Chemistry, Aarhus University 2001 Professor of Chemistry, Aarhus University 2010 Advanced Research Professor of Chemistry, Aarhus University

Directorships 2004–07: Director of "Centre for Theoretical Chemistry", funded by the Danish Natural Science Research Council 2006–11: Director of "The Lundbeck Foundation Centre for Theoretical Chemistry" funded by the Lundbeck Foundation 2012–17: Director of "The qLEAP Centre for Theoretical Chemistry" funded by the European Research Council

Awards Appointed "Knight of the Order of the Dannebrog" by the Queen of Denmark in 2010 for his outstanding contributions to science. Elected member of the International Academy of Quantum Molecular Science (2012). Awards for extraordinary scientific accomplishment by the International Conference of Computation Methods in Science and Engineering (ICCMSE) (2006). Honoured by Thomson Scientific and the Danish Library Association as the most cited author in chemistry in Denmark during the period 1990–2004. Rigmor and Carl Holst-Knudsens Videnskabspris, Aarhus University (1986).

References

External links His International Academy of Quantum Molecular Science page Oddershede, J. (2005). "Poul Jørgensen and His Science". Advances in Quantum Chemistry. 50: xxi-xxix. doi:10.1016/S0065-3276(05)50019-4. ISBN 9780120348503.{{cite journal}}: CS1 maint: periodical has ISBN (link)

Worked examples

Example 1 — a first encounter with Poul Jørgensen (chemist)

Start with the simplest possible case. Write down what Poul Jørgensen (chemist) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Poul Jørgensen (chemist) before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Poul Jørgensen (chemist) ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Poul Jørgensen (chemist)

In research: Poul Jørgensen (chemist) appears in chemistry research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Poul Jørgensen (chemist) in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Poul Jørgensen (chemist) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1944 births, Academic staff of Aarhus University, Computational chemists, so understanding it makes those chapters shorter.
In everyday life: Look for Poul Jørgensen (chemist) outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Poul Jørgensen (chemist) in 20 minutes

Read the reference excerpt below once, without taking notes.
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Frequently asked questions

What is Poul Jørgensen (chemist) in simple terms?

Why does Poul Jørgensen (chemist) matter?

Because it connects several chemistry ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Poul Jørgensen (chemist)?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Poul Jørgensen (chemist).