From 4021da83c391684b3ed748b79f9e29d6a150cf49 Mon Sep 17 00:00:00 2001
From: hzhang <zhangh40@msu.edu>
Date: Sat, 22 Jun 2024 02:28:37 +0800
Subject: [PATCH] Construct Compound

---
 src/Chemistry/Bonds/Implements/BaseBond.cs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Chemistry/Bonds/Implements/BaseBond.cs b/src/Chemistry/Bonds/Implements/BaseBond.cs
index ac8a135..aa34878 100644
--- a/src/Chemistry/Bonds/Implements/BaseBond.cs
+++ b/src/Chemistry/Bonds/Implements/BaseBond.cs
@@ -171,14 +171,16 @@ public abstract class BaseBond
         bond.StructureChanged();
         if (Atom.Compound.Atoms.Contains(bond.Atom))
             return;
-        bond.Atom.HomogeneousMixture.Compounds.Remove(bond.Atom.Compound);
-        bond.Atom.Compound.Amount = 0d;
         
+        Compound r = bond.Atom.Compound;
         foreach (BaseAtom atom in bond.Atom.Compound.Atoms.ToHashSet())
         {
             Atom.Compound.Atoms.Add(atom);
             atom.Compound = Atom.Compound;
         }
+
+        r.Amount = 0d;
+        r.HomogeneousMixture.Compounds.Remove(r);
     }
     /// <summary>
     /// disconnect with connected bond