Table 5. Synthesized 33-mer sequences used for interbase FRET measurements.

Sequence name a	DNA sequence b	Φ F c (%)
D7	5′-d(CGA TCA (pA)AA AAA ATT W)-3′	20
D9	5′-d(CGA TCA AA(pA) AAA ATT W)-3′	24
D11	5′-d(CGA TCA AAA A(pA)A ATT W)-3′	28
A0	5′-d(X TAT AAT CGT AAT TTT Z)-3′
A13	5′-d(X TAT qAnitro AT CGT AAT TTT Z)-3′
A14	5′-d(X TAT A qAnitro T CGT AAT TTT Z)-3′
A19	5′-d(X TAT AAT CGT qAnitro AT TTT Z)-3′
A20	5′-d(X TAT AAT CGT A qAnitro T TTT Z)-3′

^aSequence and sample preparation can be found in the ESI. Samples are named by the donor (D) or acceptor (A) position from the 5′ end.

^b W = ACG ATT ATA AGG AGG AGG. X = CCT CCT CCT; Z = TTT TGA TCG.

^cQuantum yields were determined with quinine sulfate as reference (Φ_F = 54.6% in 0.5 M H₂SO₄) using an excitation wavelength of 353 nm.