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Julius Stieglitz

Julius Stieglitz 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 Julius Stieglitz rather than just read about it. In short: Julius Oscar Stieglitz (May 26, 1867 – January 10, 1937) was an American chemist of German Jewish origin. He was a teacher and organic chemist with a major interest in pharmaceutical and medicinal chemistry.

Julius Stieglitz — main illustration
Julius Stieglitz — illustration

Key takeaways

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

Reference excerpt

Julius Oscar Stieglitz (May 26, 1867 – January 10, 1937) was an American chemist of German Jewish origin. He was a teacher and organic chemist with a major interest in pharmaceutical and medicinal chemistry. He is known for the Stieglitz rearrangement, a rearrangement reaction in organic chemistry which commonly involves the formation of imines from hydroxylamines through a carbon to nitrogen shift, comparable to the key step of a Beckmann rearrangement. During the early stages of his career, he worked for Parke, Davis & Co. in Detroit as a toxicologist. After attending private and public schools in New York during his early years, both he and his twin brother Leopold were sent to Germany for their higher education. He went to the Gymnasium in Germany and studied at the University of Berlin, where he received his PhD in chemistry in 1889 with Ferdinand Tiemann. Following a short period of study with Victor Meyer at Göttingen, he returned to the U.S. in 1890. In 1892 Stieglitz started working at the University of Chicago, where his whole career until his retirement took place. Julius and his twin brother Leopold were born in Hoboken, New Jersey on May 26, 1867, to Edward Stieglitz (1833–1909) and Hedwig Ann Werner (1845–1922). His elder brother was the photographer Alfred Stieglitz. He married Anna Stieffel on August 28, 1891. He began his career at the University of Chicago in 1892 as an unpaid docent, lecturing without salary and sustaining himself from student donations. In 1893 he was appointed assistant professor, and moved up through the ranks to become professor of chemistry in 1905. He served as department chair from 1915 to 1933. In 1933, he was named professor emeritus but continued to teach and serve as board chair of the American Chemical Society. Dr. Stieglitz was very active in ACS, serving as the Chicago Section Chair in 1904, and ACS President in 1917. In 1911, he was elected to the National Academy of Sciences. He was elected to the American Academy of Arts and Sciences in 1914 and the American Philosophical Society in 1919. Stieglitz helped to establish the Willard Gibbs Medal, and received the Gibbs Medal himself in 1923. He received honorary doctorates from Clark University (D.Sc.) and the University of Pittsburgh (Ph.D.). He died in Chicago on January 10, 1937.

Stieglitz Lecture The Stieglitz Lecture was established using funds dedicated in his memorial legacy in 1940. The lecture was presented alternatively by the University of Chicago Chemistry department and the Chicago Section of the ACS in consecutive years until 1994. There was a pause in presentation from 1994 until 1999 until the funds built up to a level where they were sufficient to support a stipend of $1,000 plus expenses for each year.

References

William Albert Noyes (1937), Biographical Memoir of Julius Stieglitz (PDF), National Academy of Science Jim Shoffner (2012), Dr. Julius Stieglitz and the Stieglitz Lectures (PDF), Chicago Section of the American Chemical Society, p. 4

Further reading Stieglitz, J (1919), "Chemistry and Medicine: A Tribute to the Memory of John Harper Long", Science, vol. 49, no. 1254 (published January 10, 1919), pp. 31–38, Bibcode:1919Sci....49...31S, doi:10.1126/science.49.1254.31, PMID 17735880 Stieglitz, J (1917), "The Outlook in Chemistry in the United States", Science, vol. 46, no. 1188 (published October 5, 1917), pp. 321–333, Bibcode:1917Sci....46..321S, doi:10.1126/science.46.1188.321, PMID 17816438 Stieglitz, J (1908), "The Applications of Physical Chemistry to Organic Chemistry", Science, vol. 27, no. 698 (published May 15, 1908), pp. 768–775, Bibcode:1908Sci....27..768S, doi:10.1126/science.27.698.768, PMID 17791043 Stieglitz, J (1907), "Chemical Research in American Universities", Science, vol. 26, no. 673 (published November 22, 1907), pp. 699–703, Bibcode:1907Sci....26..699S, doi:10.1126/science.26.673.699, PMID 17738116

External links Works by Julius Stieglitz at Project Gutenberg Works by or about Julius Stieglitz at the Internet Archive

Illustrations

Julius Stieglitz illustration

Worked examples

Example 1 — a first encounter with Julius Stieglitz

Start with the simplest possible case. Write down what Julius Stieglitz 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 Julius Stieglitz 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 Julius Stieglitz 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 Julius Stieglitz

In research
Julius Stieglitz 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 Julius Stieglitz 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
Julius Stieglitz is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1867 births, 1937 deaths, American chemists, so understanding it makes those chapters shorter.
In everyday life
Look for Julius Stieglitz 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 Julius Stieglitz in 20 minutes

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

Frequently asked questions

What is Julius Stieglitz in simple terms?

Julius Oscar Stieglitz (May 26, 1867 – January 10, 1937) was an American chemist of German Jewish origin. He was a teacher and organic chemist with a major interest in pharmaceutical and medicinal chemistry.

Why does Julius Stieglitz 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 Julius Stieglitz?

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 Julius Stieglitz.

Tags

  • 1867 births
  • 1937 deaths
  • American chemists
  • American people of German-Jewish descent
  • American twins
  • Jewish American scientists
  • Jewish chemists
  • Members of the American Philosophical Society
  • University of Chicago faculty

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