Nope. Corporation tax is +/- 28% of pre-tax profit. The point is that you cannot change this pre-tax profit figure, just by changing the date you pay your employers. So no, it wouldn't (or shouldn't) change your cash flow situation.
For example, if you chose to pay your employers one year after the corresponding salary period, you'd be accruing that salary in your accounts for a year. Therefore your profit would include the cost, whether you've paid it or not.
In fact if you didn't include that salary expense in your accounts(which you have to) you'd be liable to more corporation tax as your profit would be higher (but it isn't).
Trying telling HMRC that you wish you defer the corporation tax you owe them by six months...and that it's fine as it's just swings and roundabouts.
28% of your profit is worth more to them now, than whenever you decide you feel like paying it x months down the line.
Actually HMRC are quite receptive at the moment to deferred payments especially to SME's but obviously its on a case by case basis