I am Looking for a green color molecule less than 3 angstrom in size

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Discussion Overview

The discussion revolves around the search for green-colored molecules that are less than 3 angstroms in size. Participants explore various chemical compounds and their properties, including size and color, while also discussing methods for estimating molecular dimensions.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant mentions Cr2O3 but notes it exceeds 3.5 angstroms, seeking alternatives smaller than that.
  • Another participant suggests several metal chlorides, oxides, and disulfides, specifically mentioning Vanadium and Titanium as potential candidates.
  • A participant describes their method for estimating molecular size by assuming cubic shapes and calculating dimensions based on mass and density, arriving at a size of 2.8 angstroms for a specific molecule.
  • One participant offers bond length tables and references a specific text, "Structural Inorganic Chemistry" by Wells, as a resource for further information.
  • A comprehensive list of green inorganic molecules is provided, including various compounds containing elements like Chromium, Iron, Nickel, and Vanadium, among others.

Areas of Agreement / Disagreement

Participants present multiple viewpoints and suggestions without reaching a consensus on a specific molecule that meets the criteria of being green and less than 3 angstroms in size. The discussion remains unresolved regarding the exact identification of such molecules.

Contextual Notes

Participants express uncertainty regarding the availability of size databases and rely on assumptions for calculations. The discussion includes various compounds with differing properties, and the criteria for "green" color may vary based on context.

Who May Find This Useful

Individuals interested in inorganic chemistry, molecular size estimation, and the properties of colored compounds may find this discussion relevant.

Panthera Leo
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I am Looking for a green color molecule less than 3 angstrom in size...

I have found Cr2O3 but its greater than 3.5 angstrom... so anything smaller will do the job :)

Thanks in advance.
 
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I don't have size lists, but several metal chlorides and oxides and disulphides are green, try Vanadium and Titanium for the less exotic ones.

If you can do some size research I can make a green list.
 
Thanks studiot,

Actually I didn't find any size database either... so I am making guesses by assuming the molecules are cubic in shape; so its length = CubeRoot (Mass/Volume) :p

I checked it with water & it wasn't bad;
Mass of molecule= 3x10^-23 gm
Density = 1 gm/cm^3
hence V= m/D = 3x10^-23 cm^3
taking the cuberoot = 3.1x10^-8 cm = 3.1 Angstom

The actual value is 2.8 Angstrom on its longest side!
 
Last edited:
I have bond length tables.
Of course you need the bond angles then.

The definitive work is

Structural Inorganic Chemistry

by Wells

(Oxford)
 
Green inorganic molecules

HSb(OH)6
Be
Cr2O2
Cr(OH)3.2H2O
Cr3C2
CrF3
CuHAsO3
CuCl2.2H2O
Fe(OH)2
FeI2.2H2O
FeSO4(NH4)2SO4.2H2O
FeCl2.4H2O
FeCO3
Fe(CO)5
FeSO4.7H2O
Fe2S3
MnO
NiO
Ni(OH)2
Ni(C2H3O2)2
NiCl3NH4Cl.6H2O
NISO4.(NH4)2SO4.6H2O
NiCO3
2NiCO3.3Ni(OH)2.4H2O
Ni(CN)2.4H2O
Ni(NO3)2.6H2O
Ni3(PO4)2.7H2O
Nb
OsCl2
Pd2S
(NH4)2PdCl4
PtCl2
PtP2O7
PuBr3
K2MnO4
Pr2O3
Pr2(SO4)3
SmCl3
AgC2H3O2
Na2MnO4.10H2O
SnO2
TiS2
W2C
U3O8
UCl4
U(SO4)2.4H2O
VO
VO2
VCl2
VN
YbCl3.6H2O


go well
 

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