The 14th Amendment passed Congress on June 13, 1866 and was ratified on July 9, 1868. Of the loyal slave states, three did not ratify it until the 20th Century: Delaware (1901), Maryland (1959) and Kentucky (1976). If that was a bribe, it didn't work very well and Section 4 of the amendment voided all claims for compensation regarding emancipation. As noted in a different response, the payment to loyal slave owners whose slaves enlisted was meant as compensation under the Takings Clause of the 5th Amendment.