The compound of four octahedra is a uniform polyhedron compound. It's composed of a symmetric arrangement of 4 octahedra, considered as triangular antiprisms. It can be constructed by superimposing four identical octahedra, and then rotating each by 60 degrees about a separate axis (that passes through the centres of two opposite octahedral faces). Its dual is the compound of four cubes. (Wikipedia).
How to construct an Octahedron
How the greeks constructed the 2nd platonic solid: the regular octahedron Source: Euclids Elements Book 13, Proposition 14. In geometry, an octahedron is a polyhedron with eight faces, twelve edges, and six vertices. The term is most commonly used to refer to the regular octahedron, a Plat
From playlist Platonic Solids
Organic Chemistry - Ch 1: Basic Concepts (14 of 97) Isomers of Octane (18) Simple Representation
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the properties (18) or isomers or octane, using simple representation. Next video in this series can be seen at: https://youtu.be/3yMgJI8Sdq4
From playlist ORGANIC CHEMISTRY CH1 INTRODUCTION
Chemistry - Molecular Structure (10.5 of 45) Basic Shapes-Octahedral with Free Electron Pairs
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the octahedral with free electron pair(s).
From playlist CHEMISTRY 14 MOLECULAR STRUCTURE
Chemistry - Molecular Structure (6 of 45) Basic Shapes - Octahedral Molecules
Visit http://ilectureonline.com for more math and science lectures! In this video I will introduce the basic octahedral molecules of the molecular structure.
From playlist CHEMISTRY 14 MOLECULAR STRUCTURE
Chemistry - Molecular Structure (10 of 45) Basic Shapes-Octahedral with Free Electron Pairs
This video has an uploading audio error...the audio error-free video lives at: https://www.youtube.com/watch?v=IAULFewncc8 In this video I will explain the octahedral with free electron pair(s).
From playlist CHEMISTRY 14 MOLECULAR STRUCTURE
Using a set of points determine if the figure is a parallelogram using the midpoint formula
👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr
From playlist Quadrilaterals on a Coordinate Plane
Mod-04 Lec-31 Photocatalysis - III
Nano structured materials-synthesis, properties, self assembly and applications by Prof. A.K. Ganguli,Department of Nanotechnology,IIT Delhi.For more details on NPTEL visit http://nptel.ac.in
How Materials Science Can Help Create a Greener Future - with Saiful Islam
Saiful Islam argues that advances in green technology need to be preceded by advances in materials science. Subscribe for regular science videos: http://bit.ly/RiSubscRibe The supply of clean sustainable energy is one of the greatest challenges of our time. Better batteries for electric
From playlist Chemistry
What Are Allotropes of Metalloids and Metals | Properties of Matter | Chemistry | FuseSchool
What Are Allotropes of Metalloids and Metals Learn the basics about allotropes of metalloids and metals, as a part of the overall properties of matter topic. An allotrope is basically a different form of the same element, each with distinct physical and chemical properties. For example
From playlist CHEMISTRY
10. Structure-based feature vector
Chemistry alone isn't enough to help ML models make predictions. Instead, we need to featurize the structure of a material. What aspects would make good structural features? How do we featurize them? This video covers some relevant structural features from the atomic through the crystal st
From playlist Materials Informatics
Spin Orbit Coupling Driven Novel Quantum Magnetism in Iridate... by Roumita Roy
PROGRAM FRUSTRATED METALS AND INSULATORS (HYBRID) ORGANIZERS Federico Becca (University of Trieste, Italy), Subhro Bhattacharjee (ICTS-TIFR, India), Yasir Iqbal (IIT Madras, India), Bella Lake (Helmholtz-Zentrum Berlin für Materialien und Energie, Germany), Yogesh Singh (IISER Mohali, In
From playlist FRUSTRATED METALS AND INSULATORS (HYBRID, 2022)
Calculating coordination number from ion size and predicting crystal structure example problem
Tutorial example solution for how to use cation and anion size to predict cation and anion coordination number and use these to predict crystal structure type.
From playlist MSE example problems tutorial
The Wondrous World of Perovskites - with Mike Glazer
In the 2017 Bragg Lecture, Mike Glazer unearths the vital world of perovskites, the crystalline materials that make up 38% of the Earth's volume. Q&A: https://www.youtube.com/watch?v=WsPBB6azzX4 Subscribe for regular science videos: http://bit.ly/RiSubscRibe The crystalline materials kno
From playlist Ri Talks
Ionic Compounds: Writing Chemical Names
How to write chemical names for ionic compounds You can see a listing of all my videos at my website, http://www.stepbystepscience.com
From playlist Chemical Equations; Ionic and Covalent Compounds
Studies of Magnetic Quantum Disorder on Jeff=1/2 Triangular Lattices by Stephen Wilson
PROGRAM FRUSTRATED METALS AND INSULATORS (HYBRID) ORGANIZERS Federico Becca (University of Trieste, Italy), Subhro Bhattacharjee (ICTS-TIFR, India), Yasir Iqbal (IIT Madras, India), Bella Lake (Helmholtz-Zentrum Berlin für Materialien und Energie, Germany), Yogesh Singh (IISER Mohali, In
From playlist FRUSTRATED METALS AND INSULATORS (HYBRID, 2022)
Chemistry 1B Professor Eric Potma Department of Chemistry University of California, Irvine
From playlist Chem 1P: Studio Version
0:00 discussion of tragic mustache mishap 1:00 perovskite crystal structure 7:26 silicates 11:20 carbon polytypes 19:56 crystal systems and bravais lattices 22:46 Miller indices for labeling points, directions, planes and families of planes and directions in crystal systems 44:01 drawing p
From playlist Introduction to Materials Science & Engineering Fall 2019
9/23/16 intro to MSE crystal structures, atomic packing, coordination
Callister intro to MSE chapter 3 lesson 1 Basic crystal structures, coordination number, ionic radii relationship to crystal structures, atomic packing fraction, density, planar density, linear density, rock salt, hexagonal close packed, body centered cubic, FCC, HCP, BCC, Pauling rules
From playlist Introduction to Materials Science and Engineering Fall 2016
Frustrated Systems - The Materials Landscape by Surjeet Singh
PROGRAM FRUSTRATED METALS AND INSULATORS (HYBRID) ORGANIZERS: Federico Becca (University of Trieste, Italy), Subhro Bhattacharjee (ICTS-TIFR, India), Yasir Iqbal (IIT Madras, India), Bella Lake (Helmholtz-Zentrum Berlin für Materialien und Energie, Germany), Yogesh Singh (IISER Mohali, I
From playlist FRUSTRATED METALS AND INSULATORS (HYBRID, 2022)
Organic Chemistry Naming Examples 4
Organic Chemistry Naming Examples 4
From playlist Organic Chemistry