chemistry

Huang Weiyuan

Huang Weiyuan 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 Huang Weiyuan rather than just read about it. In short: Huang Weiyuan (Chinese: 黄维垣; December 15, 1921 – November 17, 2015) was a Chinese organic chemist and an academician of the Chinese Academy of Sciences. He served as President of the Shanghai Institute of Organic Chemistry and President of the Chinese Chemical Society.

Key takeaways

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

Reference excerpt

Huang Weiyuan (Chinese: 黄维垣; December 15, 1921 – November 17, 2015) was a Chinese organic chemist and an academician of the Chinese Academy of Sciences. He served as President of the Shanghai Institute of Organic Chemistry and President of the Chinese Chemical Society.

Early life and education Huang was born in Putian, Fujian, China on December 15, 1921. He graduated from Fukien Christian University in 1943 with a bachelor's degree in chemistry. After earning his MS in 1949 from Lingnan University in Guangzhou, he entered Harvard University and received his Ph.D. in 1952. His graduate advisor was the organic chemist Louis Fieser.

Career Huang joined the Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences in 1955. In 1958, he responded to the demand of Chinese defense industry, stopped his established organic natural product research work and pursued research in the field of organofluorine chemistry. Under his leadership, the major base for organofluorine chemistry in China was established at the SIOC. Huang discovered the sulfinatodehalogenation reaction in 1981, which converts perfluoroalkyl halides to the corresponding perfluoroalkanesulfinates with sulfinatodehalogenation reagents such as sodium dithionite. He and his students identified this reaction as a single electron transfer reaction. This reaction opens a new and practical way for perfluoroalkylation of unsaturated substrates such as alkenes alkynes and aromatics compounds with sulfinatodehalogenation reagents. This reaction is well documented internationally and he won the Second-class Award of National Natural Science in 1986. Huang has published more than 200 research papers and has mentored twenty Ph.D. candidates, including the first Ph.D. in Organic Chemistry in Mainland China. He was the first one in China (1958) to introduce NMR and IR applications in organic chemistry. He was elected as an academician of the Chinese Academy of Sciences in 1980. Huang was deputy director of SIOC (1978-1984) and director from 1984-1987. SIOC is the major Chinese chemistry research center and the place edits and publishes several major Chinese academic journals of chemistry. Huang was the founder and chief editor of the Chinese Journal of Chemistry. He was elected as President of the Chinese Chemical Society (1986-1990). Huang was in the first delegation from the Chinese chemist community to visit USA in 1977 and he made great efforts to establish the good relationship in exchange of scholars and visiting between Chinese and American chemists. Huang received broad recognition from international chemistry community. He was elected as bureau member of IUPAC (1985-1993). He was awarded the Moissan Medal in 1986 at the conference "Centenary of the Discovery of Fluorine" in Paris. He was the co-chairman of 17th international symposium of fluorine chemistry in 2003.

Death Huang died in the United States on November 17, 2015, aged 93.

References

Worked examples

Example 1 — a first encounter with Huang Weiyuan

Start with the simplest possible case. Write down what Huang Weiyuan 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 Huang Weiyuan 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 Huang Weiyuan 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 Huang Weiyuan

In research: Huang Weiyuan 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 Huang Weiyuan 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: Huang Weiyuan is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1921 births, 2015 deaths, Chemists from Fujian, so understanding it makes those chapters shorter.
In everyday life: Look for Huang Weiyuan 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 Huang Weiyuan in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Huang Weiyuan 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 Huang Weiyuan out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Huang Weiyuan in simple terms?

Why does Huang Weiyuan 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 Huang Weiyuan?

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 Huang Weiyuan.