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Chemical Forces
Bonds
14
Chemistry
Undergraduate 4
12/08/2011

Additional Chemistry Flashcards

 


 

Cards

Term
Covalent Bond
Definition

Strength: Very Strong

Energy-distance function: Complex, but comparatively long-range

Term
Ionic bond
Definition

Strength: Very strong

Energy-distance function: 1/r, comparatively long-range

Term
Ion-dipole
Definition

Strength: Strong

Energy-distance function: 1/r2, short range

Term
Dipole-dipole
Definition

Strength: Moderately strong

Energy-distance function: 1/r3, short-tange

Term
Dipole-induced dipole
Definition

Strength: weak

Energy-distance function: 1/r4, very-short range

Term
Dipole-induced dipole
Definition

Strength: very weak

Energy-distance function: 1/r6, extremely short-range

Term
London Dispersion Energy
Definition

Strength: Very Weak

Energy-distance function: 1/r6, very short-range

Term
Lithophiles
Definition

Li+, Mg2+, Ti4+, Al3+, Cr3+

 

Hard cations found in association with oxides or O in polyoxo species: silicates, carbonates

Term
Chalcophiles
Definition

Cd2+, Pb2+, Sb 3+, Bi3+

 

Soft cations found in association with soft bases such as sulfides

Term
Atmophiles
Definition
Gases such as H2, N2, and the noble gases
Term
Saline Hydride
Definition

Formed by electropositive elements (Group 1 and 2)

 

Ionic with high mp

 

eg NaH, CaH2

 

Exception: Be

Term
Molecular hydride
Definition

usually formed from electronegative non-metals

 

usually gases

 

eg HF, NH3

Term
η2-H2 
Definition

Complex of a transition metal 

 

Kubas complex

 

the sigma bond between H-H into an empty orbital on the Metal

Term
Hydrogen bonds in HF5
Definition

Similar to H bond network in water

 

The δ+ H atoms of HF can form a hydrogen bond network with the δ- F atoms of HF

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