Syntax for Access Query using Dates

What is the correct syntax for the following:
I am trying to write a query which evaluates whether today's date is between two dates - - if so, then perform a calculation, else Null.  I'm having trouble with the date syntax.

This is what I have tried:

Expr:  IIf(Date() > #[BeginningDate]# and < #[EndingDate]# , [PerformCalculation] ,Null)

Thank you.
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Ess KayEntrapenuerCommented:
Firstly, you need More than OR EQUAL >= and less than OR EQUAL <=
Secondly, after AND you need a complete statement not <ENDDATE

 IIf(Date() >= [BeginningDate] and Date() < [EndingDate] , [PerformCalculation] ,Null) AS NAMEYOURNEWFIELD

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