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Chemistry in the Fredrickson
          Group: revealing the chemical origins of structural complexity in
          alloys

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  • News
  • Archive

(19 Nov)Welcome to Brenna, our newest group members!

(7 Aug)Now in Inorg. Chem.: "At the Limits of Isolobal Bonding: π-Based Covalent Magnetism in Mn2Hg5"

(9 Jul)Now in Inorg. Chem.: "Frustrated and Allowed Structural Transitions at the Limits of the BaAl4 Type: The (3 + 2)D Modulated Structure of Dy(Cu0.18Ga0.82)3.71"

(7 May)Congratulations to Hillary Mitchell Warden on completing her PhD!

(29 Apr)Now in J. Am. Chem. Soc.: "Mn39Si9Nx: Epitaxial Stabilization as a Pathway to the Formation of Intermetallic Nitrides"

(23 Mar)Now in Inorg. Chem.: "Entropy-Driven Incommensurability: Chemical Pressure-Guided Polymorphism in PdBi and the Origins of Lock-In Phenomena in Modulated Systems"

(9 Mar)Now in Inorg. Chem.: "Intermetallic Reactivity: Ca3Cu7.8Al26.2 and the Role of Electronegativity in the Stabilization of Modular Structures"

(25 Feb)Congratulations to Gordon Peterson on completing his PhD!

(27 Nov)We have a group Twitter now! Check it out!

(19 Nov)Welcome to Brandon, Jonathan and Danica, our newest group members!

(7 Nov)Now in J. Am. Chem. Soc.: "Frustrated and Allowed Structural Transitions: The Theory-Guided Discovery of the Modulated Structure of IrSi"

(24 Jul)Now in Inorg. Chem.: "Cation Clustering in Intermetallics: The Modular Bonding Schemes of CaCu and Ca2Cu"

(13 Mar)Now in Inorg. Chem.: "Templating Structural Progessions in Intermetallics: How Chemical Pressure Directs Helix Formation in the Nowotny Chimney Ladders"

(21 Feb)Now in Acta Crystallorg. A.: "Principles of weakly ordered domains in intermetallics: the cooperative effects of atomic packing and electronics in Fe2Al5"

(7 Feb)Now in Inorg. Chem.: "Pseudogap Control of Physical and Chemical Properties in CeFeSi-Type Intermetallics"

(17 Jan)Congratulations to Katie Hilleke on completing her PhD!

(19 Nov) Welcome to Amber, Keyu and Kyana our newest group members!

(18 Oct) Now in Inorg. Chem.: "Paths to Stabilizing Electronically Aberrant Compounds: A Defect-Stabilized Polymorph and Constrained Atomic Motion in PtGa2"

(2 Oct) Now in J. Phys. Chem. A: "Discerning Chemical Pressure amidst Weak Potentials: Vibrational Modes and Dumbbell/Atom Substitution in Intermetallic Aluminides"

(8 Nov) Welcome to Mary and Kendall, our newest group members!

(14 May) Now in Angew. Chem.: "Inducing Complexity in Intermetallics through Electron–Hole Matching: The Structure of Fe14Pd17Al69."

(4 May) Now in Z. Kristallogr: "Electron-counting in intermetallics made easy: the 18-n rule and isolobal bonds across the Os–Al system."

(21 Feb) Now in Crystal Growth & Design: "Substitution Patterns Understood through Chemical Pressure Analysis: Atom/dumbbell and Ru/Co Ordering in Derivatives of YCo5."

(20 Feb) Now in Inorg. Chem.: "18-Electron Resonance Structures in the BCC Transition Metals and Their CsCl-type Derivatives."

(9 Nov) Danny's commentary on recent work by the Freedman group at Northwestern

(8 Nov) Welcome to Erdong, our newest group member!

(28 Sep) Now in Inorg. Chem.: "On the Functionality of Complex Intermetallics: Frustration, Chemical Pressure Relief, and Potential Rattling Atoms in Y11Ni60C6."

(1 Aug) Now in Crystal Growth & Design: "Putting ScTGa5 (T = Fe, Co, Ni) on the Map: How Electron Counts and Chemical Pressure Shape the Stability Range of the HoCoGa5 Type."

(21 June) Now in Inorg. Chem.: "Chemical Pressure-Driven Incommensurability in CaPd5: Clues to High-Pressure Chemistry Offered by Complex Intermetallics."

(1 June) Now in Inorg. Chem.: "Toward Design Principles for Diffusionless Transformations: The Frustrated Formation of Co-Co Bonds in a Low-Temperature Polymorph of GdCoSi2."

(May)Congratulations to Brandon, Kale, and Yiming upon successfully completing their PhD degrees!

(6 Apr) Now in Chemistry of Materials: "Chemical Pressure Schemes for the Prediction of Soft Phonon Modes: A Chemist's Guide to the Vibrations of Solid State Materials."

(1 Apr) Now in Crystals: "PRINCEPS: A Computer-Based Approach to the Structural Description and Recognition of Trends within Structual Databases and Its Application to the Ce-Ni-Si System."

(7 Dec) Now in JACS: "Epitaxial Stabilization between Intermetallic and Carbide Domains in the Structures of Mn16SiC4 and Mn17Si2C4."

(19 Nov) Now in Inorg. Chem: "Generality of the 18-n Rule: Intermetallic Structural Chemistry Explained through Isolobal Analogies to Transition Metal Complexes."

(2 Nov) Welcome to Hillary, our newest group member!

(27 July) Now in Inorg. Chem: "Defusing Complexity in Intermetallics: How Covalently Shared Electron Pairs Stabilize the FCC Variant Mo2CuxGa6-x (x ≈ 0.9)."

(27 April) Dr. Berns' thesis comic book draws attention. (link to video)

(3 Nov) Welcome to Gordon and Leland, our newest group members!

(3 Oct) Now in Inorg. Chem.: "Homoatomic Clustering in T4Ga5 (T = Ta, Nb, Ta/Mo): A Story of Reluctant Intermetallics Crystallizing in a New Binary Structure Type."

(19 Sep) Now in Inorg. Chem.: "Structural Plasticity: How Intermetallics Deform Themselves in Response to Chemical Pressure, and the Complex Structures That Result."

(12 Sep) Now in Inorg. Chem.: "Orbital Origins of Helices and Magic Electron Counts in the Nowotny Chimney Ladders: the 18 - n Rule and a Path to Incommensurability."

(05 Aug) Now in JACS: "Pi-Conjugation in Gd13Fe10C13 and Its Oxycarbide: Unexpected Connections between Complex Carbides and Simple Organic Molecules"

(07 Jun) Now in JCTC: "Progress in Visualizing Atomic Size Effects with DFT-Chemical Pressure Analysis: From Isolated Atoms to Trends in AB5 Intermetallics."

(21 Feb) Published in Inorg. Chem.: "Isolobal Analogies in Intermetallics: The Reversed Approximation MO Approach and CrGa4- and Ir3Ge7-type Phases."

(01 Dec) In Chem. Mater.: "Structural and magnetic properties of the CP stabilized LnMnxGa3."

(25 Oct) Published in Inorg. Chem.: "Problem Solving with Pentagons: Tsai-Type Quasicrystal as a Structural Response to Chemical Pressure."

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