Subject: Nickel Diazalene, Structure and Calculations?

From: "John Waite, Tel 1-7238958, N.H.R.F., Vas. Konstantinou 48, Athens 116-35" <[email-masked]>
Date: Fri, 17 Dec 93 13:27 GMT

Dear Netters,
    Does anyone know of references for the structure, bond lengths
 and angles of Nickel Diazalene, shown below? Also of calculations
 on the same system?
       
                H2   H2
          R     N    N      R             R=H preferably
           \  /  \  /  \   /              M=Ni
             ||   M    || 
           /  \  /   \  /  \
          R     N     N     R
                H2    H2
       
  Similarly for:
 
                H    H2
          R     N    N      R             R=H preferably
           \  /  \  /  \   /              M=Ni
             ||   M    || 
           /  \  /   \  /  \
          R     N     N     R
                H2    H 
  or
       
                H2   H 
          R     N    N      R             R=H preferably
           \  /  \  /  \\  /              M=Ni
             ||   M     |                
           /  \  /   \ //  \
          R     N     N     R
                H2    H 
 
  and with four NH groups.
       
  Dr. John Waite,
    National Hellenic Research Foundation,
       Vas. Konstantinou 48,
          Athens GR116-35
             GREECE     
 
 E-mail: [email-masked]