Input interpretation
trisulfur
Chemical names and formulas
formula | S_3 name | trisulfur alternate names | sulfur trimer | trisulphur mass fractions | S (sulfur) 100%
Lewis structure
Draw the Lewis structure of trisulfur. Start by drawing the overall structure of the molecule, ignoring potential double and triple bonds: Count the total valence electrons of the sulfur (n_S, val = 6) atoms: 3 n_S, val = 18 Calculate the number of electrons needed to completely fill the valence shells for sulfur (n_S, full = 8): 3 n_S, full = 24 Subtracting these two numbers shows that 24 - 18 = 6 bonding electrons are needed. Each bond has two electrons, so in addition to the 2 bonds already present in the diagram we expect to add 1 bond. To minimize formal charge sulfur wants 2 bonds. Identify the atoms that want additional bonds and the number of electrons remaining on each atom: Fill in the 2 bonds by pairing electrons between adjacent highlighted atoms, noting that the valence shell of the central atom has been expanded: Answer: | |
3D structure
3D structure
Basic properties
molar mass | 96.18 g/mol phase | gas (at STP)
Units
Thermodynamic properties
specific heat capacity c_p | gas | 0.497 J/(g K) molar heat capacity c_p | gas | 47.8 J/(mol K) specific entropy S° | gas | 2.802 J/(g K) molar entropy S° | gas | 269.5 J/(mol K) (at STP)
Chemical identifiers
CAS number | 12597-03-4 PubChem CID number | 139340 SMILES identifier | S=S=S InChI identifier | InChI=1S/S3/c1-3-2