astronomy

Hiizu Iwamura

Hiizu Iwamura is a astronomy 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 Hiizu Iwamura rather than just read about it. In short: Hiizu Iwamura (岩村秀, Iwamura Hiizu; born 17 December 1934) is a Japanese chemist and Professor of Chemistry, Nihon University, as well as Professor Emeriti of the Institute for Molecular Science in Okazaki, the University of Tokyo, and Kyushu University in Japan. Education 1957 B.S.

Key takeaways

Hiizu Iwamura belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Hiizu Iwamura to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Hiizu Iwamura from memory before moving on to harder problems.

Reference excerpt

Hiizu Iwamura (岩村秀, Iwamura Hiizu; born 17 December 1934) is a Japanese chemist and Professor of Chemistry, Nihon University, as well as Professor Emeriti of the Institute for Molecular Science in Okazaki, the University of Tokyo, and Kyushu University in Japan.

Education 1957 B.S. Faculty of Science, The University of Tokyo 1962 D.Sci. in Chemistry, The University of Tokyo Thesis: Intramolecular Hydrogen Bonding between Hydroxy Group and π-Electron Systems (Supervisors: Professors Yoshiyuki Urushibara and Michinori Oki)

Academic experience 1962-1966 Assistant Professor, The University of Tokyo 1966-1969 Lecturer, The University of Tokyo 1967-1969 Research Associate, University of Wisconsin (with Prof Howard E. Zimmerman) 1970-1977 Associate Professor, The University of Tokyo November 1974-January 1975 DAAD Visiting Professor, University of Tübingen, Germany 1977-1988 Professor, Institute for Molecular Science, 1978-1987 Director of Division of Applied Molecular Science 1983-1985 Adjunct Professor, Faculty of Engineering, Nagoya University 1987-1995 Professor, The University of Tokyo November, 1987 Visiting Professor, University of Chicago 1994-1998 Professor, Kyushu University, 1995-1998 Director, Institute for Fundamental Research in Organic Chemistry, Kyushu University April–May, 1995 Visiting Professor, Louis Pasteur University, France 1998-2000 Professor, National Institution for Academic Degrees 2000-2005 Professor, University of the Air, 2001-2005 Director of Tokyo Bunkyo Study Center 2005-2010 Professor, Advanced Research Institute of Science and Humanity, Nihon University 2010–present Professor, College of Science and Technology, Nihon University

Professional activities 1979-1989 Associate and Titular Member, Commission on Organic Photochemistry, Division of Organic Chemistry, IUPAC 1992-1994 Member of the Board of Directors of the Chemical Society of Japan 1993-1994 Chairman, Kanto Section of the Chemical Society of Japan 1999-2012 Chairperson of the Committee for Validation and Examination for Degrees, National Institution for Academic Degrees and University Evaluation 2000-2005 Member of the Science Council of Japan 2005-2011 Corresponding Member of the Science Council of Japan March 2000-February 2001 President Elect, the Chemical Society of Japan March 2001-February 2002 President, The Chemical Society of Japan 2007-2008 The First President, Japan Union of Chemical Science and Technology

Journals involvement 1987-1996 Journal of Physical Organic Chemistry Editorial Board 1987-1992 New Journal of Chemistry, France, Advisory Board 1987-1999 Advances in Physical Organic Chemistry, Advisory Board 1988-2000 Chemical Reviews (American Chemical Society), Editorial Advisory Board

Chairmanship of conferences and symposia June 1982 Oji International Seminar on Chemistry of Weak Molecular Interactions in Aichi October 1992 International Conference on Chemistry and Physics of Molecule-Based Magnetic Materials in Tokyo 1990-1995 The Chemical Society of Japan Executive Committee for 1995-Chemical Congress of The Pacific Basin Societies in Honolulu 1995 The 6th Kyushu International Symposium on Physical Organic Chemistry 1995-2000 Vice-Chairman, 2000 Chemical Congress of the Pacific Basin Societies in Honolulu September 1996 The 1st Gordon Research Conference on Organic Structure and Properties in Fukuoka

Awards and honors 1963 The Chemical Society of Japan Award for Young Scientist　 November 1987 Julia and Edward Lee Lectureship from the University of Chicago 1992 The Chemical Society of Japan Award 1996 Purple Ribbon Medal of Japan (Shiju Hosho) 1998 Fujiwara Science Award 2001 Maria Sklodowska-Curie Medal from the Polish Chemical Society 2003 The Japan Academy Prize 2010 The Order of the Sacred Treasure

Major research interest and accomplishments Organic molecule-based magnets, Radical and carbene chemistry, Correlated internal rotation (molecular gears), Organic reactions in sub- and supercritical water. In 1984 he prepared hydrocarbon tri-carbene and tetra-carbene to demonstrate that their 2p-electron spins aligned in parallel and paramagnetic moments became greater than those of iron(III) and Gd(III) salts due to five 3d- and seven 4f-electron spins, respectively. The highest spin nona-carbene ever prepared had a S = 9 ground state (1993). Aminoxyl radicals and pyridylcarbenes were assembled into polymers by coordination with magnetic metal ions to give mixed metal-organic molecule-based magnets. They included a ferromagnet with the Curie temperature of 46 K (1996) and photomagnets where only the irradiated part become strongly magnetic (1997). Earlier he designed and prepared a whole series of di-(9-triptycyl)X (X=CH2, NH, O, SiH2, S) as molecular cog-wheels and demonstrated that they undergo almost free correlated internal rotation (disrotation) by various physical and chemical measurements. Since the rapid internal rotation of the cog-wheels does not get off the track, the di-9-triptycyl compounds carrying different benzene ring(s) gave isolable stereoisomers due to the phase of the label in spite of the rapid internal rotation (1980). More recently he developed a number of preparative organic reactions that proceed by way of aldol condensation and Michael addition in sub- or supercritical water in the absence of any added catalysts.

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with Hiizu Iwamura

Start with the simplest possible case. Write down what Hiizu Iwamura claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, 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 Hiizu Iwamura 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 Hiizu Iwamura 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 Hiizu Iwamura

In research: Hiizu Iwamura appears in astronomy 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 Hiizu Iwamura 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: Hiizu Iwamura is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1934 births, Academic staff of Kyushu University, Academic staff of Nihon University, so understanding it makes those chapters shorter.
In everyday life: Look for Hiizu Iwamura 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 Hiizu Iwamura in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Hiizu Iwamura means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Hiizu Iwamura out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Hiizu Iwamura in simple terms?

Why does Hiizu Iwamura matter?

Because it connects several astronomy 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 Hiizu Iwamura?

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 Hiizu Iwamura.