Using strings to merge data frames in R

I'm trying to randomly assign some subjects to a set of given data frames (they already have some subjects assigned).

Suppose I have generated

set.seed(5)
no_bin <- sample(c("H1","H2","M1","M2"), 7, replace = TRUE)
 vect_groups <- paste0("Group", no_bin)

Then I have a string vector "GroupH2" "GroupM1" "GroupH1" "GroupM1" "GroupM1" "GroupH1" "GroupH1" and I would like to assign the first row of data frame Subjects to Group H2, the second row of data frame subjects to Group M1...

Can anyone help me?