What else (besides benzophenone) can both do phosphorescence but not fluorescence, and what else can do both phosphorescence and fluorescence? For example, does pentacene can do both?

I'm reading that there are more compounds that can only do 1, than do both. But is there any inherent contradiction that if it had the properties, the properties will contradict?

For example, if a compound has properties A and B to do fluorescence, and properties C and D to do phosphorescence, then a compound that has A, B, C, and D, should do both fluorescence and phosphorescence, and will not have any contraindicating properties?

And what do we have for fluorescence/phosphorescence in the visible-light range, i.e., absorb violet and emit red.

So far I only have organic compounds, what about for inorganic compounds?

What else (besides benzophenone) can both do phosphorescence but not fluorescence, and what else can do both phosphorescence and fluorescence? For example, does pentacene can do both?

I'm reading that there are more compounds that can only do 1, than do both. But is there any inherent contradiction that if it had the properties, the properties will contradict?

For example, if a compound has properties A and B to do fluorescence, and properties C and D to do phosphorescence, then a compound that has A, B, C, and D, should do both fluorescence and phosphorescence, and will not have any contraindicating properties?

And what do we have for fluorescence/phosphorescence in the visible-light range, i.e., absorb violet and emit red.

So far I only have organic compounds examples, what about for inorganic compounds examples? As well as for organometallics.

What else (besides benzophenone) can both do phosphorescence but not fluorescence, and what else can do both phosphorescence and fluorescence?

I'm reading that there are more compounds that can only do 1, than do both. But is there any inherent contradiction that if it had the properties, the properties will contradict?

For example, if a compound has properties A and B to do fluorescence, and properties C and D to do phosphorescence, then a compound that has A, B, C, and D, should do both fluorescence and phosphorescence, and will not have any contraindicating properties?

And what do we have for fluorescence/phosphorescence in the visible-light range, i.e., absorb violet and emit red.

So far I only have organic compounds, what about for inorganic compounds?

What else (besides benzophenone) can both do phosphorescence but not fluorescence, and what else can do both phosphorescence and fluorescence? For example, does pentacene can do both?

I'm reading that there are more compounds that can only do 1, than do both. But is there any inherent contradiction that if it had the properties, the properties will contradict?

For example, if a compound has properties A and B to do fluorescence, and properties C and D to do phosphorescence, then a compound that has A, B, C, and D, should do both fluorescence and phosphorescence, and will not have any contraindicating properties?

And what do we have for fluorescence/phosphorescence in the visible-light range, i.e., absorb violet and emit red.

So far I only have organic compounds, what about for inorganic compounds?