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Key Documents

Z184756

Cochranes molecular models

organic/inorganic, orbit

Synonym(s):

chemistry model sets, molecular model sets

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About This Item

UNSPSC Code:
60104506
NACRES:
NB.17

description

Scale: 2 cm = 0.1 nanometer (1 Å), Minit 3 cm = 0.1 nanometer (1 Å), Orbit

feature

no. of atoms 240
no. of bonds 200

manufacturer/tradename

Cochranes 0027

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General description

Learn about molecular shape, stereochemistry, isomerism and bonding in organic and inorganic molecules and complex ions. This Orbit set is suitable for students, teachers and researchers doing chemistry at advanced school level, college or university. The contents enable the construction of many different molecules and allow comparison of different structures including saturated hydrocarbons, unsaturated hydrocarbons, cyclic hydrocarbons, functinal groups in organic chmeistry, benzene, polymerization, optical isomerism, simple inorganic milecules and complex ions. Includes instruction/activity booklet, Z129070.

Scale: 3 cm = 0.1 nanometer (1 A), Orbit

ATOMS:
  • 1-prong: Hydrogen, white (50), Nitrogen, blue (10), Oxygen, red (10), Fluorine, light green (10), Sulfur, yellow (2), Chlorine, green (15)
  • 2-prong linear: Carbon, black (10), Nitrogen, blue (2)
  • 2-prong 110°: Sulfur, yellow (10), Oxygen, red (25)
  • 3-prong 120°: Carbon, black (20), Nitrogen, blue (6)
  • 4-prong tetrahedral: Carbon, black (30), Nitrogen, blue (10), Oxygen, red (10), Phosphorous, purple (5), Sulfur, yellow (5), Metal, silver (2)
  • 6-prong octahedral: Carbon, black (2), Sulfur, yellow (1), Metal, silver (2)
  • 5-prong tribunal bipyramid: Carbon, black (6), Nitrogen, blue (1), Oxygen, red (1), Phosphorous, purple (1)
  • X pegs (6)

BONDS:
  • Extra-thick, light-grey, 5 cm (20)
  • Extra-thick, light-grey, 3.5 cm (100)
  • Extra-thick, light-grey, 2 cm (50)
  • Extra-rigid, grey, 3.5 cm (15)
  • Rigid mixed, 10 cm (1)
  • Very flexible white, 5 cm (10)
An extensive model system offering 15 atomic bonding configurations in 12 colors of plastic atoms. The carbon atom is represented in nine configurations: linear, trigonal (in five angle variations), tetrahedral, octahedral, trigonal-bipyramidal. Models come in two sizes: Orbit and Minit. Spare atom centers and bonding tubes are available for all model kits.

Please see Technical Information Bulletin AL-183 for a listing of these items, available on our website at sigma-aldrich.com

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Certificates of Analysis (COA)

Lot/Batch Number
30312023

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Articles

VSEPR Chart | Valence Shell Electron Pair Repulsion Theory

Use our handy VSEPR chart to find the 3-D geometric VSEPR shapes of molecules and ions. Learn about VSEPR theory and shapes like trigonal planar or square pyramidal. VSEPR stands for valence shell electron pair repulsion.

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