Marilyn Olmstead was an American chemist, an expert in small molecule crystallography and an international leader in the crystallographic study of fullerenes, or "Buckyballs." She held the position of professor emerita of chemistry at the University of California Davis. [1] [2] [3]
She was elected as a Fellow of the American Chemical Society in 2014 [4] [5] [6] and the American Crystallographic Association in 2017. [7]
Marilyn Olmstead was born on December 8, 1943, in Glendale, California. [3] and graduated from Burbank High School in 1961.
Olmstead earned a B.A. in chemistry from Reed College in 1965. She attended University of Wisconsin-Madison for her graduate studies, supported by a Woodrow Wilson Fellowship. She received her Ph.D. in chemistry from Wisconsin-Madison in 1969, the only woman in her graduating class of 40 students. [1]
Olmstead started at the Department of Chemistry of the University of California, Davis in 1969 as lecturer in chemistry (1969-1975) She wa subsequently appointed postdoctoral fellow (1971–1986), staff research associate (X-ray crystallography) (1986–1997), and specialist (1997–2003). By 2000, she was the in charge of a crystallographic laboratory that was one of the most productive in the world; she herself had the highest number of publications and cites of anyone in the chemistry department. Eventually, in 2003, when Marilyn was 60 years old, she was appointed to the faculty as full professor. She became a faculty member at the rank of professor Step 2 in 2003, and advanced through the system to professor, Step 6 in 2015. She became emerita in 2015. [3]
Olmstead was a specialist in small-molecule crystallography. A focus of her research after 1990 was the structural characterization by X-ray crystallography of fullerenes, both empty and filled (endohedrals) cages, in collaboration with Alan Balch. She contributed to many of the papers that described previously undetected higher fullerenes (larger than C70) [8] (until 2018 when this record was broken [9] ) and endohedral fullerenes (those that contain encaged metals and small clusters). [10] [11] [12] She pushed boundaries of crystallography, employing synchrotron radiation and ultra-low temperature data collection. Complementing her work on fullerenes and carbon nonocapsules, she also collaborated with petroleum scientists to provide definitive structural characterization of a number of the large family of diamondoid hydrocarbons found in oil wells. [13] Structure of [123]tetramantane, a new type of σ-helical structure based on a diamondoid (nanodiamond) framework, [14] and the structure of the first fullerene that did not obey the Isolated pentagon rule. [15] She was also responsible for the structural characterization of the first boron-centered radical. [16]
Olmstead served as an original co-editor of the journal Acta Crystallographica Section E from 2001 to 2011. She served in the elected positions of chair of the General Interest Group, and chair of the Continuing Education Committee in the American Crystallographic Association. She was a member of the Journal’s Commission of the International Union of Crystallography. She was an elected member of the U.S. National Committee on Crystallography, a branch of the National Academy of Sciences.
In 2014 Olmstead was elected a Fellow of the American Chemical Society. [4] [5] [6] In 2017, she was elected a Fellow of the American Crystallographic Association. [7]
Marilyn Olmstead was killed on September 30, 2020, in a collision while cycling on a rural road north of Davis, California. [17]
Fullerene chemistry is a field of organic chemistry devoted to the chemical properties of fullerenes. Research in this field is driven by the need to functionalize fullerenes and tune their properties. For example, fullerene is notoriously insoluble and adding a suitable group can enhance solubility. By adding a polymerizable group, a fullerene polymer can be obtained. Functionalized fullerenes are divided into two classes: exohedral fullerenes with substituents outside the cage and endohedral fullerenes with trapped molecules inside the cage.
The fluoronium ion is an inorganic cation with the chemical formula H
2F+
. It is one of the cations found in fluoroantimonic acid. The structure of the salt with the Sb
2F−
11 anion, has been determined. The fluoronium ion is isoelectronic with the water molecule and the azanide ion.
Dialkylbiaryl phosphine ligands are phosphine ligands that are used in homogeneous catalysis. They have proved useful in Buchwald-Hartwig amination and etherification reactions as well as Negishi cross-coupling, Suzuki-Miyaura cross-coupling, and related reactions. In addition to these Pd-based processes, their use has also been extended to transformations catalyzed by nickel, gold, silver, copper, rhodium, and ruthenium, among other transition metals.
A borylene is the boron analogue of a carbene. The general structure is R-B: with R an organic moiety and B a boron atom with two unshared electrons. Borylenes are of academic interest in organoboron chemistry. A singlet ground state is predominant with boron having two vacant sp2 orbitals and one doubly occupied one. With just one additional substituent the boron is more electron deficient than the carbon atom in a carbene. For this reason stable borylenes are more uncommon than stable carbenes. Some borylenes such as boron monofluoride (BF) and boron monohydride (BH) the parent compound also known simply as borylene, have been detected in microwave spectroscopy and may exist in stars. Other borylenes exist as reactive intermediates and can only be inferred by chemical trapping.
A cycloparaphenylene is a molecule that consists of several benzene rings connected by covalent bonds in the para positions to form a hoop- or necklace-like structure. Its chemical formula is [C6H4]n or C
6nH
4n Such a molecule is usually denoted [n]CPP where n is the number of benzene rings.
Karl Wieghardt is a German inorganic chemist and emeritus director of the Max Planck Institute for Chemical Energy Conversion in Mülheim. He was active in the preparation and detailed characterization of models for iron and manganese metalloenzymes, metal complexes of noninnocent ligands, and magnetic interactions in polynuclear metal complexes.
Corinna S. Schindler is a Professor of Chemistry at the University of Michigan. She develops catalytic reactions with environmentally benign metals such as iron, towards the synthesis of biologically active small molecules. For her research in the development of new catalysts, Schindler has been honored with several early-career researcher awards including the David and Lucile Packard Foundation Fellowship in 2016, the Alfred P. Sloan Fellowship in 2017, and being named a member of the C&EN Talented 12 in 2017. Schindler has served on the Editorial Board of Organic and Bimolecular Chemistry since 2018.
Richard Dronskowski is a German chemist and physicist. He is a full professor at the RWTH Aachen University.
Hans Georg von Schnering was a German chemist and professor of inorganic chemistry at the University of Münster, honorary professor at the University of Stuttgart and director at the Max Planck Institute for Solid State Research.
Nathan C. Gianneschi is the Jacob & Rosaline Cohn Professor of Chemistry, Materials Science & Engineering, and Biomedical Engineering at Northwestern University and the Associate Director for the International Institute for Nanotechnology. Gianneschi's lab takes an interdisciplinary approach to nanomaterials research, with a focus on multifunctional materials for biomedical applications, programmed interactions with biomolecules and cells, and basic research into nanoscale materials design, synthesis and characterization.
Natalia B. Shustova is a Peter and Bonnie McCausland Professor of Chemistry at the University of South Carolina. She focuses on developing materials for sustainable energy conversion, metal-organic frameworks (MOFs), covalent organic frameworks (COFs), and graphitic supramolecular structures.
Nontrigonal pnictogen compounds refer to tricoordinate trivalent pnictogen compounds that are not of typical trigonal pyramidal molecular geometry. By virtue of their geometric constraint, these compounds exhibit distinct electronic structures and reactivities, which bestow on them potential to provide unique nonmetal platforms for bond cleavage reactions.
Mark Stradiotto is a Canadian chemist. He is currently the Arthur B. McDonald Research Chair and the Alexander McLeod Professor of Chemistry in the Department of Chemistry at Dalhousie University.
Ellen Sletten is an American chemist who is the John McTague Career Development Chair at University of California, Los Angeles. Her research considers the use of physical organic chemistry for diagnostics and medical therapies.
The borosulfates are heteropoly anion compounds which have sulfate groups attached to boron atoms. Other possible terms are sulfatoborates or boron-sulfur oxides. The ratio of sulfate to borate reflects the degree of condensation. With [B(SO4)4]5- there is no condensation, each ion stands alone. In [B(SO4)3]3- the anions are linked into a chain, a chain of loops, or as [B2(SO4)6]6− in a cycle. Finally in [B(SO4)2]− the sulfate and borate tetrahedra are all linked into a two or three-dimensional network. These arrangements of oxygen around boron and sulfur can have forms resembling silicates. The first borosulfate to be discovered was K5[B(SO4)4] in 2012. Over 75 unique compounds are known.
The borophosphates are mixed anion compounds containing borate and phosphate anions, which may be joined together by a common oxygen atom. Compounds that contain water or hydroxy groups can also be included in the class of compounds.
Marinella Mazzanti is an Italian inorganic chemist specialized in coordination chemistry. She is a professor at EPFL and the head of the group of Coordination Chemistry at EPFL's School of Basic Sciences.
Jieping Zhu is an organic chemist specializing in natural product total synthesis and organometallics. He is a professor of chemistry at EPFL and the head of the Laboratory of Synthesis and Natural Products.
Karsten Meyer is a German inorganic chemist and Chair of Inorganic and General Chemistry at the Friedrich-Alexander University of Erlangen-Nürnberg (FAU). His research involves the coordination chemistry of transition metals as well as uranium coordination chemistry, small molecule activation with these coordination complexes, and the synthesis of new chelating ligands. He is the 2017 recipient of the Elhuyar-Goldschmidt Award of the Spanish Royal Society of Chemistry, the Ludwig-Mond Award of the Royal Society of Chemistry, and the L.A. Chugaev Commemorative Medal of the Russian Academy of Sciences, among other awards. He also serves as an Associate Editor of the journal Organometallics since 2014.
Harry Dorn is an American chemist and a professor of chemistry at Virginia Tech, since 1974. He was a professor of Radiology at Virginia Tech Carilion School of Medicine and a professor at Virginia Tech Fralin Biomedical Research Institute from 2012 to 2017.