File Name : figure s1.tif

Caption : figure s1. the local minima for (hdmga)(w)n (n = 1-2) optimized at the m06-2x/6-311++g(3df, 3pd) level.

File Name : figure s2.tif

Caption : figure s2. the local minima for (hdmga)(w)3 optimized at the m06-2x/6-311++g(3df, 3pd) level.

File Name : figure s3.tif

Caption : figure s3. the local minima for (hdmga)(dma)(w)n (n = 0-1) optimized at the m06-2x/6-311++g(3df, 3pd) level.

File Name : figure s4.tif

Caption : figure s4. the local minima for (hdmga)(dma)(w)2 optimized at the m06-2x/6-311++g(3df, 3pd) level.

File Name : figure s5.tif

Caption : figure s5. the local minima for (hdmga)(dma)(w)3 optimized at the m06-2x/6-311++g(3df, 3pd) level.