s-net: sqc2217



			    	
		

		

			
				
				
				
				
			
			
				
					Systre crystallographic geometry file (.cgd) 
			
		

	




	

	
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			topcryst
		

	

		



 

Topological data




	
Vertices per primitive translational unit 6 

	
Edges per primitive translational unit 17 

	
Transitivity (vertex,edge)(2,5)

	
Vertex degrees {4,9} 

	
Vertex coordination sequence  [(4, 16, 50, 111, 188, 284, 402, 530, 684, 860), (9, 34, 78, 140, 223, 322, 439, 580, 734, 906)] 

	
Wells’ vertex symbol [3^2.4^3.5, 3^2.4^12.5^4.6^18] 

	
Systre key (3, 1, 1, -1, 0, 0, 1, 1, 0, -1, 0, 1, 2, 0, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 1, 6, 0, 0, 0, 2, 2, -1, 0, 0, 2, 2, 0, -1, 0, 2, 3, -1, -1, 1, 2, 4, -1, -1, 1, 2, 5, 0, 0, 1, 2, 6, 0, 0, 1, 3, 4, 0, 0, 0, 3, 6, 1, 0, 0, 4, 5, 0, 1, 0, 5, 6, 0, 0, 0) 




 

Geometric data



Systre equilibrium placement (barycentric embedding) maximising unit cell volume




	
 Spacegroup: Fmmm 


	
 Parameters:  
		

			
 a   b   c   alpha   beta   gamma 
	  
			
 
			 2.15339 
			 2.28403  
			 6.46808 
			 90.0  
			 90.0  
			 90.0 
			
	  
		

	


	
 Vertex positions:
		

			

				 X-pos 
				 Y-pos 
				 Z-pos 
			


				
 
						 0.25  
						 0.08333  
						 0.25  
				
	  
				
 
						 0  
						 0.5  
						 0.33333  
				
	  
		

	

	
Edge end points: 
		

		
		
	






Systre coordinates favouring equal edge-lengths




	
 Spacegroup: Fmmm 



		
 Parameters:  
		

			
 a   b   c   alpha   beta   gamma 
	  
			
 
			 1.80349 
			 0.95657  
			 5.4279 
			 90.0  
			 90.0  
			 90.0 
			
	  
		

		


		
Vertex positions:
			

				

					 X-pos 
					 Y-pos 
					 Z-pos 
				


					
 
							 0.25  
							  0.13676  
							  0.25  
					
	  
					
 
							 0  
							  0  
							  0.09408  
					
	  
			

		


		
Edge end points: 
			

			
			
		



	

	 


 

Hyperbolic sources





h-nets with faithful topology




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h-nets with edge collapse