Hyperpolarizabilities of 4-amino-4′-nitrodiphenyl sulfide and all of its chalcogen analogues

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Abstract
The quadratic hyperpolarizability tensor of 4‐amino‐4’‐nitrodiphenyl sulfide has been sampled by measurement of the z component of its vector part, when z is the permanent dipole direction. This was also accomplished for the oxygen, selenium, and tellurium analogues. It was found that large differences in their frequency‐doubling efficiency as powdered solids are not reflected in this molecular property. The sulfur, selenium and tellurium ethers have about the same hyperpolarizabilities while that of the oxygen member is somewhat lower.