How to store the position of nodes in igraph + R

If I have the following graph and I am setting the coordinates of the position of the nodes with a vector:

library(igraph)
library(Cairo)

g9<- graph(c(0,1,0,2,0,3,1,4,1,2,3,4,3,5,4,5,5,2),n=6,dir=FALSE)
V(g9)$name<-c(1:6)
V(g9)$label<-V(g9)$name
coords <- c(0, 0, 1.00000000000000, 0,0.500000000000000, 0.866025403784439, 0.300000000000000, 0.200000000000000, 0.441421356237309, 0.341421356237310,0.248236190979496,0.393185165257814)
coords <- matrix(coords, 6,2,byrow=T)
plot(g9,layout=coords)

      

        
        
        
      

    

Now if I add the following code, I need to set the coordinate scheme again:

vc<-c(0,1,1,2,2,3,3,1)
gp<-graph(vc,dir=FALSE);
listSub<-graph.get.subisomorphisms.vf2(g9,gp)

m<-matrix(c(unlist(listSub)),length(listSub),length(unique(vc)),byrow=T)
md<-m[!duplicated(m[,1]),]

g<-delete.vertices(g9,c(m[1,2]))

dev.new()

coord <- c(0, 0, 1.00000000000000, 0,0.500000000000000, 0.866025403784439, 0.441421356237309, 0.341421356237310,0.248236190979496,0.393185165257814)
coord <- matrix(coord, 5,2,byrow=T)
plot(g,layout=coord)

      

        
        
        
      

    

How do I make these layout positions the default - so that I can make changes to the chart structure without losing the corresponding position for each name?